In order to find out the percentage of analyte in the sample we must know...?
Answers
Answer:
17505 ± . 00005 g Percent chloride in original sample = mass of Cl in original sample ÷ mass of sample × 100 = Trial 1. . 17827 ± . 00005 g ÷ .
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Prepare a calibration curve if you have standards and do it with external standard method. Alternatively use Internal standard method by spiking a structurally similar compound.
With an external standard you make a calibration line for quantification with different concentrations. Then you should also determine the recovery rate to know how much of your analyte is lost during sample preparation.
The ESTD procedure uses absolute response factors. The response factor is normally calculated as amount / area of the analyte in the calibration sample.
In Internal Standard method, select a substance (the “internal standard”) other than the target substance. This substance must be stable, it must have similar chemical properties to the target substance, and its peak must appear near that of the target substance and be completely separated from the peaks of other sample components.