Exam (elaborations)
CIH - Sampling and Analytical Methods Questions and Answers 2024
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CIH - Sampling and Analytical Methods
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CIH - Sampling and Analytical MethodsPCM and TEM - answer Analysis methods for air asbestos samples
PLM and TEM - answer Analysis methods for bulk asbestos sample
HPLC - answer Method commonly used for analyzing PCBs, herbicides, pesticides,
phthalates, and isocyanates.
Ion Chromatography - answer A form of liquid chromatography that uses ion-exchange
resins to separate atomic or molecular ions based on their interaction with the resin.
Ion Chromatography - answer Analysis method used for anionic and cationic species,
ions of alkali and alkaline earth metals, inorganic compounds and aldehydes
HPLC - answer Isocyanates should be analyzed using what method?
(X-Ray Florescence) XRF - answer Analysis technique combining atomic emission and
atomic absorption. Used to identify elements in solids and liquid - especially lead.
Atomic Absorption Spectroscopy (AAS) - answerAn analysis technique exciting
electrons using light; used for trace METALS (chromium, cobalt, copper, iron,
magnesium, selenium, and zinc)
Atomic Emission Spectroscopy - answerAn analysis technique exciting electrons at high
heat, used for trace elements
Mass spectrometry - answerAnalysis technique used for complicated mixtures, VOCs,
PAHs, Herbicides, Insecticides.
Mass spectrometry - answerA technique separating substances based on the mass of
the molecule. Helpful in identifying unknown compounds because it separates
compounds out by charge.
Florescence detector - answerAnalysis method for highly conjugated aromatics (PAHs)
Conjugated structures - answerChemical structures that are typically represented as
having alternating single and double bonds
FID - aromatic hydrocarbons - answerShould a PID or FID be used for detecting
hydrocarbons?
, MCE filter analyzed with atomic emission spectroscopy - answerWhat is the best
method for sampling metal in welding fume?
Silica gel tube; ion chromatography - answerAmmonia should be captured using a ___
tube and analyzed using ___ chromatograpy
Formaldehyde - answerAn FID cannot detect this chemical.
PTFE (Teflon) - answerWhat type of filter/cassette is use for SARS sampling?
Hydrocarbons - answerGas chromatography is frequently used to analyze what type of
compounds?
Proportional - answerOn a gas chromatograph, how are area under the peak and mass
related?
6 - answerWhen calibrating a gas chromatograph, NIOSH recommends how many data
points over the range of detection?
Walton-Beckett Graticule - answerGuide for counting fibrous dust (glass or asbestos).
Divided into units of 3 and 5um.
Mixed cellulose ester (MCE) - answerFilter media for metals and asbestos
Glass Fiber - answerFiler media for pesticides, ethylene glycol, diesel
PVC - answerFiler media used for total weights, silica, nuisance dusts, zinc oxide
Teflon (PTFE) - answerFilter media used for SARS and anthrax
Organics - answerAn PID should be used to analyze ___
Organic and inorganic; high sensitivity - answerThe benefits of UV absorbance are that
it can measure both ___ and ___ compounds, and has ___ sensitivity.
IR spectrum - answerNo two compounds have the same __ spectrum.
Inorganic acids (mineral acids) - HCl, HNO3, H2SO4, HF - answerIon chromatography
is used to analyze ____
NIOSH 0500 and 0600 - answerNIOSH analytical methods for nuisance and respirable
dust
UV Spectrometry - answerNIOSH recommends analysis of formaldehyde and hex
chrome by ___
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