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    1. Home
    2. Chemicals
    3. Analytical Testing Methods
    Overview
    1. pH and Electrochemistry
    2. Karl Fischer Titration
    3. Trace Elemental Analysis
    4. ASTM Methods
    Other Resources

    Analytical Testing Methods

    High-Quality Analytical Testing Products from Top Brands

    Analytical testing methods help Iabs and researchers identify and monitor acidity and ion concentrations, water content, and many other properties of a range of sample types.

    Analytical techniques such as Karl Fischer titration, as well as pH and ASTM methods, are frequently used in water testing, environmental analysis, and food and beverage testing. They are also used in pharmaceutical production and the production of cosmetics, petroleum, building materials, and more, as well as in clinical research.

    Accurate, consistent outcomes are mandatory and efficiency is just as important. The analytical testing chemicals and lab products you choose help to deliver the outcomes you need and boost confidence that your samples won't be wasted.

    1. pH and Electrochemistry


    pH and electrochemistry meters and related products are used to assess acidity and alkalinity, conductivity, specific ion concentrations, and dissolved oxygen in water, wastewater, and other solutions.

    Electrodes must be carefully stored and maintained for optimal performance. As such it is important to select the right storage bottles and electrode filling, cleaning, rinsing, and storage accessories.

    Electrochemistry meters also require regular calibration and maintenance. Standard and certified pH buffers are available, as well as conductivity and specific ion standards. Other accessories include electrode supports, bulb guards, cables, connectors, and adapters.

    Browse More pH and Electrochemistry Products

    Top Categories

    pH Meters

    pH Meters

    pH Paper and Other Test Strips

    pH Paper and other Test Strips

    pH Electrode Accessories

    pH Electrode Accessories

    Electrochemistry Buffers

    Electrochemistry Buffers

    Resources

    Fisher Scientific Certified pH Buffers

    Filename
    17312_Certified_pH_Buffers_spex.pdf
    Size
    268 KB
    Format
    application/pdf

    Thermo Scientific and Fisher Chemical Electrochemistry Analytical Testing Products

    Filename
    17312_Electrochemistry_Workflow.pdf
    Size
    894 KB
    Format
    application/pdf

    2. Karl Fischer Titration


    Karl Fischer titration is used with a range of sample types to determine trace amounts of water in samples. Labs and researchers use two types of Karl Fischer titration based on a sample's properties.

    Coulometric KF titration is ideal for liquid and gaseous samples with low water content (up to 2%). Water content is measured by electrical current and the instrument's cell is made from glass with ground joint connections that ensure a tight seal against atmospheric moisture.

    Volumetric KF titration is used with solid, liquid, and gaseous samples with high water content (over 2%). Water content is measured by burette instead of electrical current and the instrument's cell construction differs from a coulometric titrator.

    Browse More Karl Fisher Titration Products

    Top Categories

    Fisher Chemical Aqualine Reagents

    Fisher Chemical™ Aqualine Reagents

    Honeywell Hydranal Reagents

    Honeywell™ Hydranal Reagents

    Resources

    Fisher Chemical Aqualine Reagents Brochure

    Filename
    17312_Fisher_Chemical_Aqualine_Reagents.pdf
    Size
    1 MB
    Format
    application/pdf

    Honeywell Analytical Testing Products Data Sheet

    Filename
    17312_Product_Overview_Guide_Hydranal.pdf
    Size
    1 MB
    Format
    application/pdf

    Honeywell Water Determination Hydranal Brochure

    Filename
    17312_Water_Determination_Hydranal.pdf
    Size
    949 KB
    Format
    application/pdf

    Honeywell Free of Imidazole Hydranal Reagents

    Filename
    17312_Hydranal_Free_Of_Imidazole_2022.pdf
    Size
    2 MB
    Format
    application/pdf

    3. Trace Elemental Analysis


    In chemistry, elemental analysis is the activity of determining the chemical elements of a compound by using chemical analysis, organic analysis, spectroscopy or atomic absorption spectrometry, among other methods. Sometimes, the sample's isotopic composition is also defined.

    The quantity determination of a specific element within a sample material (soil, waste, water, minerals, chemical compounds etc) can be performed on a solid, liquid or gas and can be divided into two categories:

    • Qualitative analysis: determines which elements are present
    • Quantitative analysis: determines how much of each element is present

    We can offer a complete line of different grade reagents and elemental standards to meet the most challenging applications.

    Different grades of products are available depending on the sensitivity you need and the technology you use, e.g.: AAS, GFAAS, ICP, ICP-OES, and ICP-MS.

    Browse More Elemental Analysis Products

    Top Categories

    Fisher Chemical Elemental Analysis Products

    Fisher Chemical™ Elemental Analysis Products

    Honeywell TraceSELECT Inorganics

    Honeywell™ TraceSELECT Inorganics

    Spectroscopy Standards

    Spectroscopy Standards

    Resources

    Fisher Chemical High-Purity Acids

    Filename
    17914_Fisher_Chemical_High_Purity_Acids.pdf
    Size
    1 MB
    Format
    application/pdf

    Thermo Scientific Specpure Analytical Standards

    Filename
    17914_Thermo_Scientific_Specpure_Analytical_Standards.pdf
    Size
    1 MB
    Format
    application/pdf

    SPEX Speciation Standards

    Filename
    17914_SPEX_Speciation_Standards.pdf
    Size
    412 KB
    Format
    application/pdf

    SPEX ICH/Global Compliance

    Filename
    17914_SPEX_ICH_Global_Compliance.pdf
    Size
    431 KB
    Format
    application/pdf

    SPEX 1 PPM Single Element Standards

    Filename
    17914_SPEX_1_PPM_Single_Element_Standards.pdf
    Size
    406 KB
    Format
    application/pdf

    SPEX Heavy Metals and Minerals Testing Kits

    Filename
    17914_SPEX_Heavy_Metals_and_Minerals_Testing_Kits.pdf
    Size
    517 KB
    Format
    application/pdf

    SPEX SPEX 30 mL Single-Element Standards

    Filename
    17914_SPEX_30_mL_Single_Element_Standards.pdf
    Size
    391 KB
    Format
    application/pdf

    SPEX USP <232>, <233> and <2232> Elemental Impurities

    Filename
    17914_SPEX_Elemental_Impurities.pdf
    Size
    650 KB
    Format
    application/pdf

    4. ASTM Methods


    American Society for Testing and Materials (ASTM) test methods are definitive procedures that produce a result. They usually include a detailed description of a procedure for determining a property or constituent of a material, an assembly of materials, or a product. These details include the apparatus, test specimen, procedure, and calculations needed for satisfactory results.

    ASTM test methods represent a consensus about the best currently available procedure and are supported by experience and data from cooperative tests.

    The ASTM publishes six types of standards: test method, specification, classification, practice, guide, and terminology.

    Browse More Products for ASTM Testing

    Resources

    The Four Ws of ASTM

    Filename
    17312_The_Four_Ws_of_ASTM.pdf
    Size
    285 KB
    Format
    application/pdf

    Solvents for Trace Analysis by UHPLC-MS White Paper

    Filename
    17312_Solvents_for_Trace_Analysis_by_UHPLC-MS_White_Paper.pdf
    Size
    551 KB
    Format
    application/pdf

    Other Resources


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    Thermo Fisher Scientific manufactures a broad selection of bulk and semi-bulk chemicals that can be fully customized to meet your research and development needs.

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