An industrial hygienist needs to evaluate worker exposure to a mixture of organic solvents with synergistic health effects. Which sampling strategy is most appropriate?
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A
Sample only the highest-boiling-point component
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B
Use separate sorbent tubes optimized for each component and sum the fractions of their respective OELs
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C
Sample with a single charcoal tube and report only the dominant compound
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D
Use a photoionization detector for instantaneous readings only