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During which of the following conditions is the blank correction not necessary?

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During which of the following conditions is the blank correction not necessary?

(a) If sample concentration rises in linear response region

(b) If sample concentration falls in linear response region

(c) If sample concentration rises in non-linear response region

(d) If sample concentration falls in non-linear response region

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This question is from Ion Analyser topic in section pH Meters and Ion Analysers of Analytical Instrumentation

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Right answer is (b) If sample concentration falls in linear response region

The explanation is: The blank correction is not necessary if sample concentration falls in the linear response region. This is the constant background for all measurements.

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