Answer Posted / nagineni72

Gc chromatography

WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2186

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Colorimtry

1707

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sop of a uv visible spectrophotometer double beam elico model

5989

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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

1654

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what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2736

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what is %labelled amount in content uniformity of dosage unit and its calculation?

5303

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why multimedia dissolution require to do?

867

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why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

2820

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why we use glass fiber filters use in some situation?

852

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what is the disso medium for tropsiun chloride

2314

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why cone formation during dissolution?

850

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please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1691

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For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4135

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What is the requirement for brazil in the analytical method vslidation comparr to ich?

854

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iam usig ph buffers merk. manually how to prepare ?

2329

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