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Sample matrix interfere in the recoveries

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Reference no: EM132439080

Problem: The following data gave the recovery of bromide from spiked samples of vegetable matter, measured by using a gas-liquid chromatographic method. The same amount of potassium bromide was added to each specimen.

Tomato 777 790 759 790 770 758 764 µg/g

Cucumber 782 773 778 765 789 797 782 µg/g

Required:

Question 1: Does the sample matrix interfere in the precision of the method?

Question 2: Does the sample matrix interfere in the recoveries?

Reference no: EM132439080

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