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[J.N._Gurtu,_Amit_Gurtu.]_Advanced_physical_chemis(BookZZ.org).pdf

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';)~'d,----------
ADVANCED
PHYSICAL CHEMISTRY
EXPERIMENTS
Dr. J.N. Gurtu
M.Sc., Ph.D.
Former Principal
Meerut College, Mee...
PRAGATI PRAKASHAN
Educational Publishers
Head Office: Revised and Enlarged Edition: 2008
PRAGATI BHAWAN
240, W K. Road , M...
CONTENTS
1. IMPORTANT FACTS IN EXPERIMENTAL CHEMISTRY 1-10
2. ERROR ANALYSIS AND STATISTICAL DATA ANALYSIS 11-25
3. ELECTR...
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[J.N._Gurtu,_Amit_Gurtu.]_Advanced_physical_chemis(BookZZ.org).pdf

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The function of the analyst is to obtain a result as near to the true value as
possible by correct application of the analytical procedure used . The level of confidence that the analyst may enjoy in his results will be very small unless he has knowledge of the accuracy and precision of the method used as well as is aware of the sources of error which may be introduced. Quantitative analysis is not simply a case of taking a sample, carrying out a single determination and then claiming that the value so obtained cannot be refuted. It also requires a sound knowledge of the chemistry involved, of the possibilities of interferences from other ions, elements and compounds as well as the knowledge of the statistical distribution of values.

The function of the analyst is to obtain a result as near to the true value as
possible by correct application of the analytical procedure used . The level of confidence that the analyst may enjoy in his results will be very small unless he has knowledge of the accuracy and precision of the method used as well as is aware of the sources of error which may be introduced. Quantitative analysis is not simply a case of taking a sample, carrying out a single determination and then claiming that the value so obtained cannot be refuted. It also requires a sound knowledge of the chemistry involved, of the possibilities of interferences from other ions, elements and compounds as well as the knowledge of the statistical distribution of values.

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