Evaluating Chemical Testing Labs - PowerPoint PPT Presentation

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Evaluating Chemical Testing Labs

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A wet chemistry lab offers many advantages over dry chemistry laboratories, including the ability to test a wide variety of different chemical mixtures. Classical & instrumental wet chemistry chemical testing will provide a wealth of details about a specific sample's chemical makeup and composition, with low to high-confidence levels for all major chemical ingredients. Further testing is performed using state-of-the-art instrumentation which will also identify impurities. – PowerPoint PPT presentation

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Title: Evaluating Chemical Testing Labs


1
Evaluating Chemical Testing Labs
  • www.ttilabs.net

2
  • A wet chemistry lab offers many advantages over
    dry chemistry laboratories, including the ability
    to test a wide variety of different chemical
    mixtures.
  • Classical instrumental wet chemistry chemical
    testing will provide a wealth of details about a
    specific sample's chemical makeup and
    composition, with low to high-confidence levels
    for all major chemical ingredients.
  • Further testing is performed using
    state-of-the-art instrumentation which will also
    identify impurities.

3
  • The objective of wet chemical analysis is to
    qualitatively analyze a sample in its whole
    entirety.
  • There are many different objectives that these
    chemical analysis services can be utilized for.
  • One of the most common is the determination of
    the concentration of a specific analytic in a
    sample.
  • These results can then be used for research
    purposes or to make a decision as to how similar
    samples should be treated.
  • Other objectives include the qualitative analysis
    of color, aroma, texture, taste and other typical
    chemical properties.

4
  • The primary goal of wet chemists is to achieve
    complete sample balance, and to therefore
    eliminate all sources of error. Samples must also
    meet specific requirements for accuracy.
  • For example, ion chromatography requires that the
    mobile and stationary phases be completely mixed
    before testing can occur.
  • This is to ensure that the sample's chemical
    composition is consistent throughout.
  • Many chemists utilize ion mobility to achieve
    this goal.
  • In this method, different concentrations of
    analyses are separated from each other by
    immersing them in an electrically charged field.

5
  • Other objectives of a classical wet chemical
    testing lab include the separation of oxygen,
    carbon dioxide and other gases from a sample.
  • This is a necessary step in assuring that
    laboratory chemical agents have no components of
    combustion products in their composition.
  • Separating gases from a mixture requires
    extremely high temperatures and pressure.
  • For this reason, many chemists choose to use a
    solid oxide separation system, such as solid
    phase centrifuges.

6
  • A wet chemical testing lab may be used to test
    the effects of a variety of hazardous substances
    on humans.
  • Many chemicals and drugs have the ability to
    cause immediate and serious health issues if
    handled improperly.
  • In addition, these chemicals pose significant
    environmental hazards when they are disposed of.
  • Many companies and facilities voluntarily submit
    to chemical testing to comply with regulatory
    agencies.
  • For these facilities and companies, the savings
    achieved through chemical testing prove to be a
    considerable investment over time.

7
  • A classical wet chemical testing lab provides
    results in a relatively short period of time.
  • This enables chemists to measure rates of
    reaction, concentration of toxic gases and other
    parameters that are important to safety.
  • In addition, results can be validated by others
    using a similar analytical procedure.
  • If accurate procedures are utilized, results are
    readily available for several years.

8
  • Some chemists prefer to use classical wet
    Chemical Testing Services.
  • These services are typically offered by
    laboratory technicians trained in a wide range of
    procedures.
  • These technicians use analytical methods to
    measure a wide range of parameters in conjunction
    with various auxiliary elements.
  • In many cases, technicians perform these services
    as part of a comprehensive analysis process for a
    wide range of substances.

9
  • The cost of chemical testing is dependent on the
    scope of the testing and on the particulars of
    the analysis.
  • Because the cost varies by company, it is
    important for chemists to determine the exact
    needs of their specific analytical chemistry lab
    and compare costs of various laboratory services.
  • Alternatively, chemists may contact local
    regulatory agencies for assistance in assessing
    costs.
  • These agencies offer valuable information on
    compliance requirements for various testing and
    analytical procedures.

10
  • The value of chemical analysis testing is often
    underestimated.
  • Not all chemical substances present a significant
    risk. In addition, in many cases, the value of a
    chemical is best evaluated when compared with
    other sources of data, such as industrial
    emissions standards.
  • A comprehensive analysis of the lab's
    infrastructure is also an important factor to
    consider.

11
  • When evaluating laboratory services, it is also
    important to consider the experience and
    qualifications of lab professionals.
  • Chemists should always select a service provider
    who has experience in providing the services
    desired.
  • Additionally, it is essential for a company to
    choose certified staff that is well-qualified to
    carry out the duties required of them.
  • This is especially important in cases involving
    dangerous chemicals.

12
  • When evaluating Chemical Testing labs, it is
    important to keep in mind that the most effective
    tests employ a rigorous set of quality controls.
  • It is important to seek lab services that employ
    strict guidelines and established criteria for
    testing.
  • These can include both federal and state laws,
    and industry-recognized standards.
  • In addition, it is essential to ensure that the
    laboratory employs high levels of security and
    protection for sensitive materials and processes.
  • Lastly, it is important to choose a company that
    is flexible and willing to provide new ways for
    testing services to meet client needs.

13
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