Research Equipment Guide

    A comprehensive breakdown of the laboratory equipment required for peptide research, from reconstitution and storage to HPLC analysis and mass spectrometry.

    For laboratory and research use only. Not for human consumption.

    Reconstitution Equipment

    Essential equipment for properly reconstituting lyophilised peptides back into solution for research use.

    Bacteriostatic Water (BAC Water)

    Sterile water containing 0.9% benzyl alcohol as a preservative. The standard solvent for peptide reconstitution in research settings.

    Purpose

    Primary reconstitution solvent. The benzyl alcohol preservative prevents microbial growth, extending solution stability.

    Specifications

    USP grade0.9% benzyl alcoholAvailable in 10mL, 30mL vialsStore at room temperature

    Sterile Water for Injection

    Purified water meeting pharmacopoeia standards, free from preservatives. Used when benzyl alcohol interaction must be avoided.

    Purpose

    Alternative reconstitution solvent when BAC water is not suitable for the specific peptide or assay.

    Specifications

    USP/EP gradePreservative-freeSingle-use vialsAvailable in 5mL, 10mL

    Graduated Transfer Syringes (U-100)

    Precision graduated syringes for accurate measurement and transfer of small solution volumes in the laboratory.

    Purpose

    Accurate measurement and transfer of reconstituted peptide solutions. 100-unit markings allow precise volumetric control.

    Specifications

    29G or 30G needle0.5mL or 1mL capacity100-unit graduationSingle-use, sterile

    Reconstitution Needles

    Larger gauge needles (18G–21G) used specifically for adding solvent to lyophilised peptide vials.

    Purpose

    Allow controlled, slow addition of solvent to the vial wall, preventing damage to the peptide cake.

    Specifications

    18G–21G gauge1–1.5 inch lengthLuer-lock compatibleSterile, individually packaged

    Alcohol Swabs / Prep Pads

    70% isopropyl alcohol saturated pads for disinfecting vial stoppers and injection sites.

    Purpose

    Maintain sterile technique during reconstitution to prevent contamination.

    Specifications

    70% isopropyl alcoholIndividually wrappedMedical grade

    Mixing Vials (Empty Sterile)

    Empty, pre-sterilised glass vials with rubber stoppers for mixing or combining reconstituted peptides.

    Purpose

    Used when researchers need to combine multiple compounds or prepare custom concentrations.

    Specifications

    10mL or 20mL capacityBorosilicate glassButyl rubber stopperAluminium crimp seal

    Storage & Handling

    Proper storage equipment is critical for maintaining peptide stability and potency throughout the study period.

    Laboratory Freezer (-20°C)

    Standard lab freezer for long-term storage of lyophilised (unreconstituted) peptides. Most peptides remain stable for 24+ months at -20°C.

    Purpose

    Primary long-term storage for unreconstituted peptides. Prevents degradation and maintains potency.

    Specifications

    Temperature range: -15°C to -25°CFrost-free preferredDigital temperature displayAlarm system for temperature deviation

    Laboratory Refrigerator (2–8°C)

    Dedicated research refrigerator for storing reconstituted peptide solutions. Critical for maintaining solution stability.

    Purpose

    Short-term storage of reconstituted peptides. Most solutions remain stable for 2–4 weeks when refrigerated.

    Specifications

    Temperature range: 2–8°CGlass door for visibilityDigital thermostatInternal lighting

    Desiccant Packs / Silica Gel

    Moisture-absorbing packets placed alongside stored peptide vials to prevent humidity-related degradation.

    Purpose

    Protect lyophilised peptides from moisture absorption, which can cause premature degradation.

    Specifications

    Food/pharma grade silica gelIndicating type (colour-change)Various sizes available

    Vial Storage Racks

    Organised storage racks designed to hold 2mL and 10mL research vials securely in freezers and refrigerators.

    Purpose

    Organised, accessible storage that prevents vial breakage and allows easy inventory management.

    Specifications

    Stainless steel or polypropylene50–100 vial capacityAutoclavableLabelling slots

    Temperature Data Loggers

    Digital devices that continuously monitor and record storage temperatures, ensuring compliance with storage requirements.

    Purpose

    Verify that peptides are stored within recommended temperature ranges. Essential for quality documentation.

    Specifications

    USB or wireless connectivity±0.5°C accuracyProgrammable alertsDownloadable data logs

    HPLC Analysis Equipment

    High-Performance Liquid Chromatography (HPLC) is the gold standard for verifying peptide purity, identity, and concentration.

    HPLC System

    Complete HPLC system including pump, injector, column oven, and detector. Used to separate, identify, and quantify peptide components.

    Purpose

    Primary analytical instrument for peptide purity testing. Separates peptide from impurities and degradation products to determine purity percentage.

    Specifications

    Binary or quaternary pumpUV/VIS detector (214nm, 280nm)Autosampler with coolingColumn oven (up to 60°C)Data processing software

    Reversed-Phase C18 Columns

    The most common HPLC column type for peptide analysis. C18 bonded silica provides excellent separation of peptide molecules.

    Purpose

    Separates peptides based on hydrophobicity. Different peptides elute at different times, allowing identification and purity determination.

    Specifications

    C18 bonded silica4.6 × 250mm typical dimensions5μm or 3μm particle size300Å pore size for peptidespH range: 2–8

    HPLC Grade Solvents

    Ultra-pure solvents required for HPLC mobile phases. Acetonitrile and water with trifluoroacetic acid (TFA) are standard for peptide analysis.

    Purpose

    Mobile phase components that carry the sample through the column. Solvent purity directly affects chromatographic results.

    Specifications

    Acetonitrile (HPLC grade, ≥99.9%)Water (HPLC grade, Type I)Trifluoroacetic acid (TFA, ≥99%)Methanol (HPLC grade, optional)

    HPLC Vials & Caps

    Specialised autosampler vials with PTFE-lined caps designed to hold prepared samples for injection into the HPLC system.

    Purpose

    Contain prepared peptide samples without contamination or interaction. PTFE lining prevents analyte adsorption.

    Specifications

    2mL borosilicate glass11mm crimp or screw topPTFE/silicone septaClear or amber options

    Analytical Balance

    High-precision balance capable of measuring to 0.0001g (0.1mg). Essential for accurate sample preparation.

    Purpose

    Weigh peptide samples accurately for HPLC analysis, ensuring correct concentrations for reproducible results.

    Specifications

    0.1mg readabilityInternal calibrationDraft shieldGLP/GMP compliantRS-232 or USB data output

    Ultrasonic Bath / Sonicator

    Uses ultrasonic waves to dissolve and degas samples and solvents. Ensures complete dissolution of peptide samples.

    Purpose

    Dissolve peptide samples fully before HPLC injection. Also used to degas mobile phases to prevent bubble formation.

    Specifications

    40kHz frequencyHeated option (up to 80°C)Timer function2–10L capacity

    Mass Spectrometry

    Mass spectrometry provides definitive identification of peptides by measuring their molecular weight with extreme precision.

    LC-MS/MS System

    Liquid chromatography coupled with tandem mass spectrometry. The most powerful tool for peptide identification and characterisation.

    Purpose

    Confirms peptide identity by measuring exact molecular mass. Can detect impurities, degradation products, and modifications at trace levels.

    Specifications

    ESI (Electrospray Ionisation) sourceTriple quadrupole or Q-TOF analyserMass range: 50–3000 m/zResolution: >10,000 FWHMIntegrated HPLC front-end

    MALDI-TOF

    Matrix-Assisted Laser Desorption/Ionisation Time-of-Flight mass spectrometer. Rapid screening tool for peptide molecular weight confirmation.

    Purpose

    Quick molecular weight verification of peptides. Simpler sample preparation than LC-MS, ideal for batch screening.

    Specifications

    Mass range: 1–500 kDaResolution: >15,000Reflector and linear modesAutomated plate reading

    MS Calibration Standards

    Reference compounds with known molecular weights used to calibrate mass spectrometers for accurate measurements.

    Purpose

    Ensure mass accuracy and instrument performance. Regular calibration is essential for reliable peptide identification.

    Specifications

    Peptide calibration mixKnown masses spanning expected rangeTraceable to international standards

    General Laboratory Equipment

    Core laboratory equipment needed for any peptide research facility, from basic sample prep to documentation.

    Micropipettes (Set)

    Precision liquid handling instruments for accurately measuring and transferring small volumes of peptide solutions.

    Purpose

    Accurate measurement of reconstitution volumes, sample preparation, and serial dilutions.

    Specifications

    P2 (0.2–2μL)P20 (2–20μL)P200 (20–200μL)P1000 (100–1000μL)Calibrated annually

    Pipette Tips (Filtered)

    Sterile, filtered disposable tips that prevent cross-contamination and aerosol carryover between samples.

    Purpose

    Maintain sample integrity and prevent cross-contamination during peptide handling.

    Specifications

    Low-retention surfaceSterile, DNase/RNase-freeFilter barrierUniversal fit

    Vortex Mixer

    Benchtop mixing device for rapid, gentle agitation of reconstituted peptide solutions to ensure homogeneity.

    Purpose

    Gently mix reconstituted peptides without foaming or degradation. Essential for uniform solution concentration.

    Specifications

    Variable speed: 0–3000 RPMTouch or continuous modeCup-head attachment for vialsCompact benchtop footprint

    Microcentrifuge

    High-speed centrifuge for small tubes (1.5–2mL). Used to separate insoluble particles and clarify peptide solutions.

    Purpose

    Spin down particulates or aggregated material from peptide solutions before analysis or use.

    Specifications

    Up to 14,000 RPM1.5mL and 2mL tube rotorsRefrigerated option availableDigital speed/time display

    pH Meter

    Digital pH meter for measuring and adjusting the pH of reconstitution buffers and peptide solutions.

    Purpose

    Many peptides have pH-dependent stability. Correct pH ensures maximum solubility and prevents degradation.

    Specifications

    ±0.01 pH accuracyAutomatic temperature compensation2-point calibrationBNC electrode connection

    Laboratory Notebook / LIMS

    Physical or electronic laboratory information management system for documenting all experimental procedures and results.

    Purpose

    Record keeping for reconstitution protocols, storage conditions, testing results, and chain of custody. Essential for GLP compliance.

    Specifications

    Bound, numbered pages (physical)Audit trail capability (electronic)Date/signature fieldsGLP-compliant formatting

    Safety & Compliance

    Personal protective equipment and safety infrastructure required when handling research peptides.

    Nitrile Gloves

    Chemical-resistant disposable gloves that protect against peptide exposure and prevent sample contamination.

    Purpose

    Dual protection: prevents skin contact with compounds and protects samples from skin oils and contaminants.

    Specifications

    Powder-free nitrile4–6 mil thicknessSizes XS–XLMedical exam grade

    Safety Goggles / Glasses

    Eye protection for handling peptide powders and solutions, particularly during reconstitution and HPLC solvent preparation.

    Purpose

    Protect eyes from accidental splashes of peptide solutions, HPLC solvents, and TFA fumes.

    Specifications

    ANSI Z87.1 ratedAnti-fog coatingSplash-proof designOver-glasses option

    Lab Coat

    Standard laboratory coat to protect clothing and skin during peptide handling procedures.

    Purpose

    Barrier protection during research procedures. Prevents contamination of personal clothing.

    Specifications

    100% cotton or poly-cotton blendKnee-lengthSnap or button closureElasticated cuffs optional

    Biosafety Cabinet / Laminar Flow Hood

    Clean air work station providing a sterile environment for reconstitution and sample preparation procedures.

    Purpose

    Maintains sterile conditions during peptide reconstitution. Protects both the operator and the sample from contamination.

    Specifications

    Class II Type A2 (biological)HEPA filtered air (99.97% @ 0.3μm)UV germicidal lampAnnual certification required

    Sharps Container

    Puncture-resistant containers for safe disposal of needles, syringes, and broken glass vials.

    Purpose

    Safe disposal of reconstitution needles and broken vials in compliance with laboratory safety standards.

    Specifications

    Puncture-resistant plasticOne-way lidBiohazard labellingVarious sizes (1–20L)

    Weighing & Measurement

    Precision measurement instruments for accurate peptide quantification and solution preparation.

    Semi-Micro Balance

    Ultra-precise balance with 0.01mg (10μg) readability for weighing small peptide quantities.

    Purpose

    Weigh milligram quantities of peptide with extreme precision for accurate concentration calculations.

    Specifications

    0.01mg readabilityMax capacity: 80–220gInternal motorised calibrationElectrostatic discharge ioniser

    Calibration Weights (OIML)

    Certified reference weights for regular verification and calibration of analytical balances.

    Purpose

    Ensure balance accuracy through regular calibration checks. Traceable to national/international standards.

    Specifications

    Class E2 or F11mg to 200g setStainless steelTraceable certificate

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