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how to prepare working standard in our laboratory aganist
reference standard ?

Answers were Sorted based on User's Feedback



how to prepare working standard in our laboratory aganist reference standard ?..

Answer / akhtar khan

working standardrs are prepared against reference standard
by triplicate analysis and calculated with the potency of
reference standard then mean of the same taken as the final
results

Is This Answer Correct ?    47 Yes 8 No

how to prepare working standard in our laboratory aganist reference standard ?..

Answer / psreddy

1.Select the raw material from the latest consignments and
identify which consignment is closest to 100% purity
2.Following tests compared with reference standard.
a.Description
b.Identification
c.Loss on drying/water content
d.Assay (Thrice)
3.Acceptance criteria :

i.The % RSD of the values obtained by both
chemists is NMT 2.0%.

ii.The % RSD of the values obtained by
individual chemist is NMT

Is This Answer Correct ?    17 Yes 0 No

how to prepare working standard in our laboratory aganist reference standard ?..

Answer / sidhu s

1. For the selection of material consider the assay, impurities and expiry date. Least impurities and highest assay and expiry is suitable. 2. To be perform identification, Loss on drying, RS and Assay. 3. Perform the assay in triplicate and RSD should not be more than 1.0 percentage.

Is This Answer Correct ?    1 Yes 2 No

how to prepare working standard in our laboratory aganist reference standard ?..

Answer / ravi

by n1v1 vs n2v2
that is available vs required

Is This Answer Correct ?    11 Yes 30 No

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