Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Arsenic in potable desert groundwater: an analysis problem.

G C Whitnack, H H Martens

    Science (New York, N.Y.)
    |January 29, 1971
    PubMed
    Summary

    Conflicting arsenic data in Mojave Desert drinking water led to an accuracy investigation. The American Public Health Association method proved unreliable due to arsine evolution interference, affecting water quality assessments.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    [Prohibition of competition between physicians].

    Deutsche medizinische Wochenschrift (1946)·1981
    Same author

    [Control of efficiency].

    Deutsche medizinische Wochenschrift (1946)·1979
    Same author

    [Hospitalization for fasting?].

    Deutsche medizinische Wochenschrift (1946)·1979
    Same author

    [Fraudulent accounts].

    Deutsche medizinische Wochenschrift (1946)·1978
    Same author

    [The unsucessful working trial].

    Deutsche medizinische Wochenschrift (1946)·1975
    Same author

    [Legislation concerning the severly handicapped].

    Deutsche medizinische Wochenschrift (1946)·1975

    Area of Science:

    • Environmental Science
    • Analytical Chemistry
    • Water Quality Assessment

    Background:

    • Conflicting analytical data regarding arsenic levels in Mojave Desert drinking water samples.
    • Previous reliance on the American Public Health Association (APHA) silver diethyldithiocarbamate method for arsenic determination.

    Purpose of the Study:

    • To investigate the accuracy of the APHA silver diethyldithiocarbamate method for arsenic analysis.
    • To identify the causes of conflicting analytical data for drinking water in the Mojave Desert.

    Main Methods:

    • Accuracy investigation of the APHA silver diethyldithiocarbamate method.
    • Analysis of arsenic content in 24 drinking water locations.
    • Evaluation of arsine evolution interference.

    Main Results:

    • Interference during arsine evolution was identified as the cause of inaccurate results.
    • The method exhibited both color enhancement and arsine suppression effects.
    • The APHA method was found to be unreliable for certain natural water types.

    Conclusions:

    • The APHA silver diethyldithiocarbamate method is not consistently reliable for arsenic determination in all natural waters.
    • Interference in arsine evolution significantly impacts the accuracy of arsenic measurements.
    • Further method validation is required for environmental water analysis.

    Related Experiment Videos