Answer Posted / mrs.tatineni

Aspirin when dissolved in water with the help of heat will
be hydrolysed partially into salicylic acid and acetic
acid. Since salicylic acid consists of a phenolic group it
will give yellow colour with ferric chloride.

what is diffrence between specificity and selecivity?

795

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What is dose dumping? why require to do?

960

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How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1781

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How much is the standard area for glc analysis

2294

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what is the origin to prepare standard operating procedure

2348

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in which situation require to change rs specification?

758

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1607

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What is viod volume and peak purity in HPLC?

2885

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Which are the diffrent grades of api in pharma?

784

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if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

991

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why multimedia dissolution require to do?

839

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Why dissolution test is not performed in all of the products

2540

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i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2739

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What is the difference between purge septum flow and column flow in gas chromatography?

2590

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which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2166

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