Weighing
Precision & Analytical Balance
Four readabilities, from a 0.01 g bench scale to a 0.1 mg analytical balance with a glass draft shield.
$110.00
Laboratory equipment and research-use analytical supplies — no peptides sold
Equipment for peptide research testing.
Laboratory instruments, consumables, and research-use reagents for defined analytical workflows. Product pages state intended use, method limitations, required equipment, and shipping restrictions.
Laboratory equipment and research-use analytical supplies. We do not sell peptides, pharmaceuticals, compounded products, or products for administration to humans or animals.
6Peptide test methods covered
48Instruments, reagents and kits
10%Off every test kit
$300Free-shipping threshold
Straight pricingShipping, tax and any approved surcharge shown before payment
11 test kits10% under the item price
Free shippingOrders over $300
WarrantyStated per instrument
Purchase ordersInvoicing for lab accounts
Research method overview
The full guide Six analytical workflows, six limited questions
Each method answers a different laboratory question. No single result establishes identity, purity, safety, sterility, or suitability for human or veterinary use.
01
Identity
Does the observed mass agree with the expected molecular mass?
- Method
- Mass spectrometry
- In-house?
- Requires a suitable mass spectrometer and a qualified method. We sell only selected sample-preparation supplies; the laboratory or contract facility is responsible for the analysis and interpretation.
Purity
What chromatographic area profile does the defined method produce?
- Method
- Reversed-phase HPLC
- In-house?
- Requires an HPLC system, appropriate detector, reference materials where applicable, system-suitability criteria, and a qualified method. We sell selected columns and consumables — not the HPLC system, and not solvents or acid modifiers.
Content
What concentration estimate does the selected method produce?
- Method
- Weighing, BCA and UV
- In-house?
- These measurements may be performed by a suitably equipped research laboratory. The laboratory is responsible for calibration, controls, method suitability, and interpretation.
Endotoxin
Does a validated LAL method detect endotoxin at the stated threshold?
- Method
- LAL gel-clot
- In-house?
- Use only in a qualified laboratory following the manufacturer's instructions and a validated, sample-appropriate method. The products listed here do not by themselves constitute a validated release test.
Sterility
Does a qualified culture method detect growth under the stated conditions?
- Method
- Culture in two media
- In-house?
- Requires qualified aseptic facilities, trained personnel, appropriate controls, and a validated method. The incubator and media sold here are not sufficient on their own to perform a compendial release test.
Quick screen
Does the sample show an unexpected TLC pattern?
- Method
- Thin-layer chromatography
- In-house?
- Performed in a research laboratory with a UV lamp. The comparison is qualitative and depends on the reference material, solvent system and conditions you choose. Developing solvents and stains are not supplied.
Featured products
Shop everything Common laboratory essentials
Sample prep
Benchtop Centrifuge
Spin down prepared analytical samples, pellet particulates, and clarify solutions before chromatographic analysis.
$100.00
Sample prep
Vortex Mixer
Variable-speed vortex with touch and continuous modes for dissolving and mixing samples.
$160.00
Incubation
Dry Block Heater
Digital dry bath holding 37 °C ± 1 °C: equipment for research-use incubation within a qualified LAL workflow.
$195.00
Sample prep
Ultrasonic Bath, 3 L
Digital 40 kHz bath for degassing mobile phase and dissolving stubborn samples.
$145.00
HPLC column
C18 Wide-Pore Peptide Column
300 Å, 5 µm C18 designed for reversed-phase separation of peptide research samples. Three dimensions for HPLC and LC-MS.
$300.00
HPLC column
C18 Guard Cartridges + Holder
Matched C18 guard cartridges that protect the analytical column from particulates and strongly retained junk.
$120.00
HPLC consumable
Amber Autosampler Vials, 2 mL
9 mm screw-thread amber glass vials with bonded PTFE/silicone septum caps.
$50.00
Featured product
Precision & Analytical Balance
Four readabilities, from a 0.01 g bench scale to a 0.1 mg analytical balance with a glass draft shield.
from $110.00
0.01 g · 0.001 g · 0.1 mg readability
Laboratory test kits
All kits One kit per workflow, 10% under the item price
4-item kit
Complete Endotoxin Kit
Lysate, LAL reagent water, depyrogenated tubes and endotoxin-free tips: the consumables for a gel-clot run. Control standard endotoxin is supplied by your lysate vendor and is not sold here.
- LAL Gel-Clot Endotoxin Test Kit20 tests · 0.125 EU/mL
- LAL Reagent Water50 mL
- Depyrogenated Glass Tubes, 10 × 75 mm50 tubes
- Endotoxin-Free Pipette Tips200 µL & 1,000 µL · 960 tips
$391.50$435.00
4-item kit
HPLC Consumables Kit
Vials, syringe filters, mobile-phase membranes and HPLC-grade water: the consumables for a first run of peptide research samples. Solvents and acid modifiers are not supplied — order those from a chemical distributor.
- Amber Autosampler Vials, 2 mL250 vials
- Low-Binding Syringe Filters, 0.22 µm200 filters
- Nylon Membrane Filters, 0.2 µm100 membranes
- HPLC-Grade Water4 L
$292.50$325.00
2-item kit
Peptide Quant Kit
BCA reagents and BSA standard for relative or estimated concentration measurements. Response depends on sequence, matrix, and calibration; BSA may not provide an absolute peptide-content value.
- BCA Assay Kit500 tests
- BSA Standard, 2 mg/mL10 × 1 mL
$193.50$215.00
The catalog
Everything for the bench, one shelf
Grouped by type. Pick an option on the card, or open a product for specs and what it's used for.
Bench Instruments8HPLC & Chromatography10Mass Spec Prep4Endotoxin & Growth-Detection Supplies7Quantitation & UV3Pipetting & Handling5Test Kits11
Bench Instruments
Balances, centrifuges, mixers and heaters for sample prep.
Weighing
Precision & Analytical Balance
Four readabilities, from a 0.01 g bench scale to a 0.1 mg analytical balance with a glass draft shield.
$110.00
Sample prep
Benchtop Centrifuge
Spin down prepared analytical samples, pellet particulates, and clarify solutions before chromatographic analysis.
$100.00
Sample prep
Vortex Mixer
Variable-speed vortex with touch and continuous modes for dissolving and mixing samples.
$160.00
Incubation
Dry Block Heater
Digital dry bath holding 37 °C ± 1 °C: equipment for research-use incubation within a qualified LAL workflow.
$195.00
HPLC & Chromatography
Columns, vials, filters and mobile-phase supplies for purity work.
HPLC column
C18 Wide-Pore Peptide Column
300 Å, 5 µm C18 designed for reversed-phase separation of peptide research samples. Three dimensions for HPLC and LC-MS.
$300.00
HPLC column
C18 Guard Cartridges + Holder
Matched C18 guard cartridges that protect the analytical column from particulates and strongly retained junk.
$120.00
HPLC consumable
Amber Autosampler Vials, 2 mL
9 mm screw-thread amber glass vials with bonded PTFE/silicone septum caps.
$50.00
Sample prep
Low-Binding Syringe Filters, 0.22 µm
13 mm hydrophilic PVDF filters with low peptide binding, for clarifying samples before injection.
$50.00
Mass Spec Prep
Research-use matrices, desalting tips, and LC-MS supplies for mass-analysis workflows.
MALDI matrix
CHCA MALDI Matrix
α-Cyano-4-hydroxycinnamic acid, recrystallised. Supports sample preparation for mass analysis of peptides under about 5 kDa.
$115.00
MALDI matrix
Sinapinic Acid MALDI Matrix
MALDI matrix supporting sample preparation for mass analysis of larger peptides and small proteins above about 5 kDa.
$85.00
Solvent
LC-MS Grade Water
Low-background water for LC-MS mobile phases, spotting solutions and blanks.
$70.00
Sample prep
C18 Micro Desalting Tips
Pipette tips packed with C18 resin that support sample preparation for mass analysis by desalting and concentrating peptide samples.
$170.00
Endotoxin & Growth-Detection Supplies
Research-use reagents, controls, media, and filtration supplies. Results require a qualified method and do not establish product safety or release eligibility.
Endotoxin
LAL Gel-Clot Endotoxin Test Kit
Research-use gel-clot LAL kit with a stated sensitivity of 0.125 EU/mL.
$200.00
Endotoxin
Endotoxin-Free Pipette Tips
Certified endotoxin-free, racked tips for LAL work, in 200 µL and 1,000 µL.
$125.00
Endotoxin
LAL Reagent Water
Endotoxin-free water for reconstituting lysate and CSE and for dilutions.
$25.00
Endotoxin
Depyrogenated Glass Tubes, 10 × 75 mm
Baked, endotoxin-free borosilicate tubes for gel-clot reactions and dilutions.
$85.00
Quantitation & UV
Assay reagents, standards, and cuvettes for method-dependent concentration estimates.
Quantitation
BCA Assay Kit
BCA reagents for method-dependent estimation of peptide or protein concentration at 562 nm.
$140.00
Quantitation
BSA Standard, 2 mg/mL
Bovine serum albumin standard in sealed ampules for building BCA calibration curves.
$75.00
Pipetting & Handling
Pipettes, tips, weighing and storage essentials.
Pipetting
Adjustable Micropipette
Fully autoclavable single-channel pipette with a lockable volume and soft-touch ejector.
$85.00
Pipetting
Low-Retention Filter Tips
Racked, sterile filter tips with a low-retention surface so peptide solutions don't cling.
$55.00
Weighing
Anti-Static Weighing Boats
Small anti-static polystyrene boats that release fine powders cleanly.
$15.00
Storage
Vacuum Desiccator, 200 mm
Polycarbonate desiccator with a stopcock, for bringing vials to room temperature dry and storing standards.
$120.00
Straight answers
We tell you when you need an instrument we don't sell.
We supply selected instruments, consumables, and research-use reagents. Qualified facilities, trained personnel, controls, method validation, and any regulatory requirements remain the laboratory's responsibility.
Shop by analytical workflow
Start from the question you're asking
01
IdentityConfirm the molecule by mass.
5 →02PuritySeparate and integrate by HPLC.
9 →03ContentWeigh, dissolve and quantify.
8 →04EndotoxinLAL testing for bacterial endotoxin.
7 →05SterilityCulture media and incubation.
5 →06Quick screensTLC and ninhydrin spot checks.
4 →07Sample prepMixing, spinning, pipetting.
8 →08StorageKeep standards dry and cold.
2 →Why Peptide Only
Built for labs that test
01
6
Workflows, one shelf
Selected supplies for identity, purity, content, endotoxin, growth-detection and quick-screen workflows, grouped by the workflow they serve.
02
10%
Kits cost less
Every test kit is priced 10% under buying the same items one by one.
03
$300
Free-shipping threshold
Orders over $300 ship free within the eligible U.S. shipping area.
04
PO
Lab-friendly ordering
Place an order and pay by emailed invoice. Approved lab accounts can pay on net terms.
05
12 mo
Instrument warranty
Instruments are covered against defects in materials and workmanship for the period set out in our terms of sale.
06
24 h
Support response
Our support team aims to respond to product and order questions within one business day.
Built around the workflow
We stock selected supplies for each research workflow, and we say plainly when one needs an instrument, facility or qualification we don't supply.
Straight pricing
The price on the page is the price. Kits are 10% under their parts, applied automatically.
Manufacturer documentation
Whatever the manufacturer supplies with an item — manual, safety data sheet or lot certificate — ships with it. Ask us before ordering if you need a specific document.
FAQ
Questions, answered
Which workflows require specialized equipment or qualified facilities?
Mass analysis requires a suitable mass spectrometer; chromatographic analysis requires an HPLC or LC-MS system. Endotoxin and growth-detection work also require qualified facilities, trained personnel, controls, and a validated sample-appropriate method. We sell selected supplies, not a complete validated laboratory process.
How are kit prices set?
Each kit costs 10% less than buying its items separately. The saving is shown on every kit. A kit is not a validated method.
Which column should I choose?
Column selection depends on the instrument, analyte, method, pressure limits, selectivity, and validation requirements. The listed dimensions are common starting points, not a guarantee of resolution or method suitability. Contact support with the instrument and method requirements before ordering.
Do you sell solvents, acids or stains?
No. We do not sell flammable, corrosive or toxic chemicals — no acetonitrile, TFA, formic acid or ninhydrin stain. Order those from a chemical distributor that is set up for hazardous-materials shipping. Everything in our catalog ships by standard services.
How fast do orders ship?
We confirm the dispatch date on your invoice before you pay. Orders over $300 ship free.
Can I return something?
Unopened instruments and consumables can be returned within 30 days; email support for return instructions first. Reagents, media and opened consumables cannot be returned for safety and integrity reasons. If anything arrives damaged, defective or incorrect, tell us within 7 days and we will replace it or refund it.
Do you accept purchase orders?
Universities, companies and contract labs can apply for a lab account with invoicing. Accounts and any credit terms require approval, and approval does not change a product's labeled intended use, processor eligibility or shipping restrictions.
Are the reagents for diagnostic use?
No product should be used outside its manufacturer-labeled intended use. Unless a product page states and documents a different status, reagents are for laboratory research use only and are not for diagnostic procedures or patient-use decisions.