Which is NOT a sample preparation technique for use with gas chromatography?
A) purge and trap
B) solid-phase microextraction
C) thermal desorption
D) stir-bar sorptive extraction
E) matrix matching
Correct Answer:
Verified
Q1: Cold trapping and solvent trapping is used
Q2: Which statement is NOT true for flame
Q4: Which statement is NOT true for gas
Q5: To maximize solid-phase microextraction analyte recovery,keep all
Q6: As the temperature of a GC column
Q7: For quantitative analysis with gas chromatography:
A)the retention
Q8: Which statement is NOT true for GC
Q9: The temperature program for a separation starts
Q10: For method development,multiple decisions must be made.Order
Q11: The thermal conductivity detector functions by measuring
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