Under what conditions are split,splitless,and on-column injection used?
I Split injection is preferred for samples where the analyte of interest constitute 0.1% of the sample.
II On-column injection is used for samples that decompose above their boiling point.
III Splitless injection is preferred for introducing small volumes of sample onto the column.
IV Split injection is preferred for samples with high boiling point solutes in low boiling point solvents.
V Splitless injection is preferred for trace analysis of analytes that are less than 0.01% of the sample.
A)I,II,and III
B)II,III,and IV
C)II,IV,and V
D)II,III,and V
E)I,II,and V

Question

Under what conditions are split,splitless,and on-column injection used?
I Split injection is preferred for samples where the analyte of interest constitute > 0.1% of the sample.
II On-column injection is used for samples that decompose above their boiling point.
III Splitless injection is preferred for introducing small volumes of sample onto the column.
IV Split injection is preferred for samples with high boiling point solutes in low boiling point solvents.
V Splitless injection is preferred for trace analysis of analytes that are less than 0.01% of the sample.
A)I,II,and III
B)II,III,and IV
C)II,IV,and V
D)II,III,and V
E)I,II,and V

Quizplus · Accepted Answer

Option I is not correct, as split injection is preferred for samples where the analyte of interest constitute <0.1% of the sample. Option II is correct because on-column injection is used for samples that decompose above their boiling point. Option III is correct because splitless injection is preferred for introducing small volumes of sample onto the column. Option IV is incorrect because split injection is preferred for samples with low boiling point solutes in high boiling point solvents. Option V is correct because splitless injection is preferred for trace analysis of analytes that are less than 0.01% of the sample. Therefore, the correct answer is D.

Under What Conditions Are Split,splitless,and On-Column Injection Used