SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Selective
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Specific
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Robust
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Rugged
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Detailed explanation-1: -If a method is relatively free from chemical interferences, we can use it to analyze an analyte in a wide variety of sample matrices. Such methods are considered robust.
Detailed explanation-2: -Selectivity/specificity. Selectivity of an analytical method is its ability to measure accurately an analyte in the presence of interferences that may be expected to be present in the sample matrix.
Detailed explanation-3: -The identification of the analyte substance is achieved via the method of qualitative analysis. The concentration of the analyte in a given mixture can be determined with the method of quantitative analysis.
Detailed explanation-4: -In gravimetric methods, we determine the mass of the analyte or some compound chemically related to it.
Detailed explanation-5: -Selectivity is a measure of a method’s freedom from interferences.5 The selectivity of a method for the interferent. relative to the analyte is defined by a selectivity coefficient, KA, I. KA, I = kI / kA which may be positive or negative depending on the sign of kI and kA.