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Life Science Supplies & Equipment Overview
SEM Supplies & Accessories

Forensic Supplies

GSR Kits and Specimen Mounts
for Scanning Electron Microscopy and Light Microscopy


forensic gunshot residue field kit
Gunshot Residue Field Kit
Gunshot Residue Lab Kit
Forensic Sample 		plastic box with six compartments1 inch square plastic box
Plastic Storage Boxes
NEW Tamper-Evident & Destructible Tapes		 carbon conductive tabs
Carbon Conductive Tabs 		carbon conductive tabs
Calibration Standards
gunshot residue standard
Gunshot Residue Standard 		tamper resistant labels
Secure-Lock Labels 		carbon fiber tweezers
Carbon Fiber Reinforced PTFE Tweezers

pelco carbon tiped tweezer 259
Carbon Fiber Reinforced PTFE Tipped Tweezers 		miltex biopsy punch with plunger
NEW Rapid-Core Sampling Punches		 aluminum rapid punchrapid-punch replacement parts
NEW Aluminum Rapid-Punch & Replacement Parts
pro-max caliper
Digital, Carbon
Fiber Caliper,
Certified
carbon fiber probes
Carbon Fiber Probes
108 carbon coater
Cressington Carbon Coaters
 Biopunch
Biopunch®		 Biopunch
Miltex® Biopsy Punch
with Plunger
Harris Uni-Core
Harris Uni-Core™		 welltech cutting mats
NEW Cutting Mats,
Small & Large		 Micro-ruler
Micro-Ruler MR-1		 Swab with Reclosable Tube
Swabs with Reclosable Tubes
Forensic Stereo Microscope
Motic® Forensic
Stereo Microscope
forensic pin mount
Special Alloy
Aluminum SEM Mount
 sem mount mailer tube
Single Mount Storage Tube		 Plastic Zipper Storage Bags
Plastic Zipper Storage Bags and Barrier Foil Locking Bags		 statmark cassette and slide marker
Laboratory Marking Pens
nitrile gloves
Safety Products
for the Laboratory



Forensic Gunshot Residue Field Kits

gunshot residue field kit   gunshot residue field kit   forensic gunshot residue field kit
3-Disc GSR Field Kit. A control disc is added to the two sampling discs to enhance certainty of the analysis. Prod. No. 16256-3.   4-Disc GSR Field Kit. Suitable for sampling palm and back separately on both hands. Prod. No. 16256-4.   5-Disc GSR Field Kit. A control disc is added to the four disc sampling kit to make it compatible with FBI requirements. Prod. No. 16256-5.


A complete line of high quality GSR field sampling kits, containing certified SEM pin stubs with double coated adhesive carbon tabs in plastic tubes. The certified SEM pin stubs have very low amounts of Pb, Sb and Ba, not detectable by SEM/EDX. The caps hold the GSR sample disc for easy and secure GSR collection. The discs are ready to use and the tubes are pre-labeled for the sampling areas. The sturdy transport box is tamper evident sealed.

gunshot residue area on hand
Normal area for taking samples on "subject" 		 

Each kit comes complete with:

  • Certified SEM pin mounts with adhesive carbon discs in pre-labeled tubes
  • Pair of powder-free nitrile gloves
  • Evidence label
  • Chain of custody label on box
  • A sturdy cardboard transport box (4-1/2"W x 3-3/4"D x 3"H)
  • Tamper evident seal
  • Instruction sheet

Technical Information on the GSR Field Kit 16256-3 (PDF)

Technical Information on the GSR Field Kits 16256-4 and 16256-5 (PDF)

Prod # Description Unit Price Order / Quote
16256-3 3 Disc Forensic Gunshot Residue Field Kit each $17.02
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16256-4 4 Disc Forensic Gunshot Residue Field Kit each 17.90
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16256-5 5 Disc Forensic Gunshot Residue Field Kit each 18.67
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gunshot residue kit

Forensic Gunshot Residue Lab Kit

Ten 12.7mm SEM pin mounts in clean, glass storage tubes (25mm OD x 55mm high) held in a compact transport box with labels. GSR Kit is designed to avoid any contamination of the GSR samples. The Forensic Gunshot Residue Lab Kit is available with either standard 12.7mm pin mounts with 8mm pins (16111) or with the shorter 6mm pins (16111-9). Also available as a lab kit without pin mounts and tabs.

Prod # Description Unit Price Order / Quote
16259 Forensic Gunshot Residue Lab Kit: 10 each 12.7mm SEM Pin Mounts (8mm pin), with mounted carbon tabs (12mm; 0.47 dia.) in Glass Tubes with Caps, 12 blank labels each $25.95
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16259-9 Forensic Gunshot Residue Lab Kit: 10 each 12.7mm SEM Short Pin Mounts (6mm pin for ZEISS/LEO), with mounted carbon tabs (12mm; 0.47 dia.) in Glass Tubes with Caps, 12 blank labels each 28.95
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  Sample Kit without pin mounts and tabs:
16260 Forensic Sample Kit: 10 Glass Sample Tubes with Caps, 12 blank labels each 18.00
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forensic field sampler

Forensic Field Sampler

A high purity certified 12.7mm SEM pin stub specimen mount (see 16253, below) with and without an adhesive carbon conductive tab, mounted into the plastic cap of a glass specimen vial (25mm OD x 55mm high). The Forensic Field Sampler has been designed to collect forensic evidence with minimum interference and/or contamination coming from the sampler. Comes in 3 versions: without adhesive carbon tab, with adhesive carbon tab ready to use, and covered carbon tab (plastic cover needs to be removed prior to use). Available with standard 12.7mm SEM pin mount with 8mm pin or short 12.7mm SEM pin mount with 6mm pin (ZEISS/LEO)

Applications for SEM or light microscopy investigation:

  • Gunshot residue (GSR)
  • Fiber collection
  • Particle sampling
  • Glass fragments
  • Paint chips
  • Powder samples

Ideally suited for SEM specimen preparation on the most commonly used SEM pin stub, facilitating easy carbon coating for SEM/EDX investigation.

The Forensic Field Sampler can be safely stored in the glass specimen vial and can be easily shipped since the cap holds the sampler stub in place. Evidence material is held by the adhesive carbon tab.

Prod # Description Unit Price Order / Quote
16250 Forensic Field Sampler without Adhesive Carbon Tab pkg/100 $169.00
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16255 Forensic Field Sampler with Adhesive Carbon Tab, ready to use pkg/100 223.50
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16255-C Forensic Field Sampler with Adhesive Carbon Tab, and clear plastic cover pkg/100 223.50
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16250-9 Forensic Field Sampler without Adhesive Carbon Tab, Short Pin pkg/100 184.00
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16255-9 Forensic Field Sampler with Adhesive Carbon Tab, ready to use, Short Pin pkg/100 238.50
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16255-C-9 Forensic Field Sampler with Adhesive Carbon Tab, and clear plastic cover, Short Pin pkg/100 238.50
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forensic kit

Numbered Gunshot Residue Sampler

Numbered, certified aluminum mount that has a double-coated adhesive carbon tab applied to hold sample in a clean, glass vial 25mm OD x 55mm high (1" x 2.17"). Packed in a box of 100. Numbers can be chosen as 100 consecutive numbers between 0 and 9999 (greatest numbers). Please inform customer service about the numbering sequence when ordering this product.

Prod # Description Unit Price Order / Quote
16251 Numbered Gunshot Residue Sampler pkg/100 $473.95
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Qualified Aluminum Alloy Specimen Mount for Forensic Use

The forensic SEM specimen mount is made of a special qualified aluminum alloy. This qualified mount does not contain elements which might interfere with the collected GSR evidence.

pin mount dimensions forensic pin mount

Prod # Description Unit Qty Price Order / Quote
16253 Qualified Aluminum Alloy SEM Specimen Mounts for Forensic Use, 12.7mm with 8mm Pin pkg/500 1-1 $195.00
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2+ 180.00
pin mount dimensions forensic pin mount

Prod # Description Unit Qty Price Order / Quote
16253-9 Qualified Aluminum Alloy Specimen Mounts for Forensic Use, 12.7mm with 6mm Short Pin pkg/500 1-1 $235.00
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2+ 211.50

sem mount tweezer

Check out our line of SEM Mount Grippers – ideal for avoiding contamination when handling SEM mounts




sem mount mailer tube

Single Pin Mount Storage Tube and Mailer

tube for SEM specimen pin mounts

Pin mounts with the standard 3.2mm (1/8") pin diameter are protected and held securely in the base (cap) of the tube. Can be used for pin mounts up to 18mm diameter. Pin mounts are sold separately. Inside dimension of clear tube: ø21mm (0.83"), max sample height on stub is 20mm (0.79"). Outside dimensions are ø23mm (0.9") with a height of 52mm (2.05"). Clear tube is made of polystyrene, cap is made of low density polyethylene (LDPE). Sold in packs of 10.

Prod # Description Unit Qty Price Order / Quote
16630 Single Mount Storage Tube and Mailer pkg/10 1-9 $4.90
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10+ 4.70




carbon conductive tabs
SEM mounts not included.

PELCO Tabs™ Carbon Conductive Tabs, Double Coated

The simplicity of application and smooth, clean surfaces of PELCO Tabs™ Carbon Conductive Tabs are a significant improvement compared to many of the other common adhesives that have been used in SEM mounting. Both tab sides have a thick conductive adhesive (conductive inner tab is 35µm and the adhesive is 45µm on each side for a total thickness of 125µm [5 mils]) with a liner on both sides, a transparent liner and white liner respectively. They are ready for immediate use. The top protective liner does not have to be removed until the sample is ready to be mounted. This reduces possible contamination. Outgassing is negligible.

Many laboratories use these tabs for SEM in a large diversity of applications. Adhering of the tab to a mount or surface should be done slowly and carefully to maintain surface smoothness. Refrigeration will increase shelf life but a warm up period of one hour is then required before use.

The PELCO Tabs™ consist of a carbon fiber mat impregnated with a conductive adhesive. There is no internal carrier film. The conductive adhesive is a carbon filled acrylic, free of solvents. It can be removed from the specimen mount with ethyl acetate, ethanol, isopropanol, alcohols or our 3M™ Adhesive Remover 80924-1 which is solvent-free. Temperature maximum is 60°C (140°F). High purity carbon tabs may contain very small impurities of Al and Si; see EDX Spectra. This product may also be used for gunshot residue analysis.

carbon conductive tabs carbon conductive tabs carbon conductive tabs carbon conductive tabs carbon conductive tabs carbon conductive tabs
#16084-6 #16084-3 #16084-1 #16084-15 #16084-2 #16084-32

Prod # Description Unit Price Order / Quote
16084-6 PELCO Tabs™, Carbon Conductive Tabs, 6mm OD pkg/112 $16.00
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16084-3 PELCO Tabs™, Carbon Conductive Tabs, 9mm OD pkg/98 16.50
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16084-1 PELCO Tabs™, Carbon Conductive Tabs, 12mm OD pkg/100 17.00
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16084-15 PELCO Tabs™, Carbon Conductive Tabs, 15mm OD pkg/100 19.00
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16084-2 PELCO Tabs™, Carbon Conductive Tabs, 25mm OD pkg/54 33.50
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16084-32 PELCO Tabs™, Carbon Conductive Tabs, 32mm OD pkg/36 23.95
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PELCO Image Tabs™, 260µm (10mil) Carbon Conductive Tabs, Double Coated

Back by popular demand, the thicker PELCO Image Tabs™ is a return to the stiff 260µm (10mil) thick smooth conductive tab. Though not as conductive or sticky as the current 10mil PELCO Tabs™, PELCO Image Tabs™ are suitable as a photographic background and are repositionable. This tab is also suitable for Jet Scan applications where the tab must be removed and archived. The PELCO Image Tab's™ surface is less prone to bubbling and cracking when metal coated under vacuum and thus better than the 125µm (5mil) PELCO Tab™ as a photographic background for small particles like pollen and insect parts.

Both sides of the 200µm thick conductive polycarbonate base have 30µm thick conductive adhesive. Total thickness is 260µm with a liner on both sides. Protection for handling, storage and shipping is provided on one side by the transparent liner sheet and on the other side by the white liner cover.

The conductive adhesive is a carbon-filled acrylic, free of solvents. It can be removed from the specimen mount with ethyl acetate, ethanol, isopropanol, alcohols or our 3M™ Adhesive Remover 80924 which is solvent-free. Temperature maximum is 60°C (140°F). Small impurities of Ni, Cu, Si, Sb, S, Na, P and very small impurities of Fe and Mg can be found. Refrigeration will increase shelf life but a warm-up time of 1 hour is then required before use.

Conductive Tabs, Tapes and Sheets Comparison Table

Prod # Description Unit Price Order / Quote
16084-20 PELCO Image Tabs™, Carbon Conductive Tabs, 12mm OD pk/100 $18.50
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"Spectro Tabs Brand", Double Coated

Construction and thickness is similar to the PELCO Tabs™ Carbon Conductive Tabs above. The EDX Analysis clearly shows a higher purity surface for those applications that require critical composition study; only minor impurities of Al and Si may be found.

Prod # Description Unit Price Order / Quote
16084-4 Spectro Tabs, High Purity Conductive Carbon Tabs, 12mm O.D. pk/120 $42.50
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16084-5 Spectro Tabs, High Purity Conductive Carbon Tabs, 25mm O.D. pk/63 42.90
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tamper resistant labels

Secure-Lock Tamper Resistant Labels

An inexpensive way to safeguard lab shipments, sealed documents or small containers.

An inexpensive way to safeguard lab shipments, sealed documents or small containers.
Once applied these economical, peel-and-stick labels cannot be removed in one piece! Instead, they are formulated to break apart when stressed, giving clear evidence that tampering has occurred.

Transparent labels display the words “TAMPER RESISTANT” in bold red ink. Ideal for use on boxes, bottles, shipping containers, parts envelopes, even file drawers. Comes in a handy dispenser box. Size 5⁄8" x 2-1⁄2" (16 x 63.5mm).

Prod # Description Unit Price Order / Quote
16250-1 Secure-Lock Tamper Resistant Labels, 5/8"x2-1/2" pkg/250 $29.30
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zipper bags
Dispenser Bag Dispenser Bag

Plastic Zipper Storage Bags

Selection of polyethylene plastic bags with a resealable locking opening. The zipper bags are ideal for packing, storing, shipping, sampling and sorting. The plain zipper storage bags are available in 11 practical sizes with a 4 mil thickness. The write-on zipper storage bags come in 6 practical sizes, they have a white write-on area and a thickness of 2 mil. These bags will hold up in a convection oven at temperatures of 90°C/195°F, remember that the air in the bag will expand during initial heating.

Prod # Description Unit Price Order / Quote
4 mil thickness (0.1mm), plain
139-110 Plastic Zipper Bag, 2 x 3" pkg/100 $4.95
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139-101 Plastic Zipper Bag, 2-1/2 x 3" pkg/100 5.35
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139-102 Plastic Zipper Bag, 3 x 4" pkg/100 6.95
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139-104 Plastic Zipper Bag, 4 x 4" pkg/100 8.10
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139-105 Plastic Zipper Bag, 4 x 6" pkg/100 8.70
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139-107 Plastic Zipper Bag, 5 x 8" pkg/100 11.35
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139-111 Plastic Zipper Bag, 6 x 6" pkg/100 13.70
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139-108 Plastic Zipper Bag, 6 x 9" pkg/100 14.50
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139-112 Plastic Zipper Bag, 8 x 8" pkg/100 21.10
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139-109 Plastic Zipper Bag, 9 x 12" pkg/100 23.50
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139-113 Plastic Zipper Bag, 10 x 12" pkg/100 33.30
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Prod # Description Unit Price Order / Quote
2 mil thickness (0.05mm) with write-on area
139-301 Write-On Bag, 2 x 3" pkg/100 $6.15
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139-302 Write-On Bag, 3 x 4" pkg/100 7.70
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139-304 Write-On Bag, 4 x 6" pkg/100 7.90
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139-307 Write-On Bag, 5 x 8"  pkg/100 13.25
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139-308 Write-On Bag, 6 x 9"  pkg/100 15.75
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139-309 Write-On Bag, 9 x 12"  pkg/100 19.90
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barrier foil locking bag

Barrier Foil Locking Bags

Barrier bags are ideal for storage of materials sensitive to moisture and/or oxygen. The inside dimensions measure 6 x 5.5" with a locking seal and a tear notch above the zipper. Material is a metal foil-covered 4mil polyethylene with a MVTR (moisture vapor transmission rate) that is 1,000x better than a typical poly bag. Bags are heat sealable with zipper style lock and resealable. Compatible with vacuum sealers.

PELCO® Technical Notes, Barrier Foil Locking Bags (119KB PDF)

Prod # Description Unit Price Order / Quote
139-310 Barrier Foil Locking Bags, 6 x 5.5" ID 100 $46.00
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barrier foil locking pouch

Barrier Foil Locking Pouches

Shown with our Specimen Storage Box, this barrier bag is ideal for storage of materials sensitive to moisture and/or oxygen. The inside dimensions measure L x H x W (where W is the pouch bottom width) with a locking opening and a tear notch above the zipper. The material is aluminum foil covered multi-layered polyethylene, providing an MVTR (moisture vapor transmission rate) that is 1,000 times better than a typical poly bag. They are heat sealable with zipper style lock and resealable. Compatible with vacuum sealers. Sizes to fit all your needs. Ideal for the storage of COVID-19 test kits.

Size Prod. No. I.D. O.D.
Small 139-311 3-3/4 x 6 x 2-1/2" 4-1/4 x 7-1/2 x 3"
Medium 139-312 6-1/4 x 7-3/4 x 2-1/2" 6-3/4 x 9-1/2 x 3"
Large 139-313 7-1/2 x 8-3/4 x 3" 8 x 10-1/2 x 3-1/2"

Typical applications include storage of:

  • moisture and oxygen sensitive materials/samples
  • light sensitive materials/samples
  • immunofluorescence labeled, confocal or immunology ANA slides from room temperature to freezer
  • radioactive labeled electrophoresis gels for both refrigerator and freezer
  • gas monitor badges, and transport

Sealing parameters:

  • Foil: PFP 400
  • Temperature: 200°C (400°F)
  • Pressure: 40 PSI
  • Dwell: 1.5 seconds

PELCO® Technical Notes, Barrier Foil Locking Pouches (119KB PDF)

Prod # Description Unit Price Order / Quote
139-311 Barrier Foil Locking Pouches, 3.75 x 6 x 2.5" ID 100 $57.50
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139-312 Barrier Foil Locking Pouches, 6.25 x 7.75 x 2.5" ID 100 56.50
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139-313 Barrier Foil Locking Pouches, 7.5 x 8.75 x 3" ID 100 66.25
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XyliTagXyliTagXyliTag

C-KurTAPE™ Cryo Tamper-Evident Tape

temperature range from -196°C to +110°C

Continuous tamper-evident tape for sealing containers and other items. Will tear into pieces upon attempt to remove. Ideal for cryogenic storage in liquid nitrogen, freezers and dry ice.  Waterproof. Can be printed with all major brands of thermal transfer printers. Writable using permanent cryogenic markers, the cryo tape is suitable for long-term storage in liquid nitrogen (-196°C), laboratory freezers (-80°C), and for transportation on dry ice. It is not compatible with printers. Permanent.

Prod # Description Unit Price Order / Quote
22320-1 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, white White each $34.10
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22320-2 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, white Silver each 34.10
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22320-3 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, yellow Yellow each 34.10
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22320-4 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, white Green each 34.10
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22320-5 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, yellow Blue each 34.10
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22320-6 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, yellow Orange each 34.10
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22320-7 C-KurTAPE™ Cryo Tamper-Evident Tape, 0.875" x 50 ft. (22.2mm x 15M), Roll, white Red each 34.10
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XyliTag

C-KurTAPE™ Cryo Destructible Tape

temperature range from -196°C to +110°C

Continuous tamper-proof destructible tape for sealing containers and other items. Will destruct and crumble into small pieces upon attempt to remove from most surfaces. Capable of withstanding cryogenic storage environments. Waterproof and transparent.

Prod # Description Unit Price Order / Quote
22320-9 C-KurTAPE™ Cryo Destructible Tape, 0.5" x 50ft. (13mm x 15.24m), Roll, white Transparent each $65.50
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22320-10 C-KurTAPE™ Cryo Destructible Tape, 0.75" x 50ft. (19mm x 15.24m), Roll, white Transparent each 70.40
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Related Forensic Products: Tweezers - Desiccators - Stereo Microscopes - Gloves - SEM Mount Storage