Answer Posted / ch prasad drl

1 IT DETECT A MULTIWAVELENGTH 1.205 2. 273 3. 245.
2 AND IT IS PRIMARY REFERENCE STANDARD.
3 IT IS VERY STABLE
4 IT IS VERY EASIY AVAILABLE IN MARCKET
5 IT IS CHEAP.

if content uniformity passing but dissolution varrying then what is next step?

817

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how can I make the copper get white bye any salt or acit?

2147

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process of Diclofenac sodium,IP.

2142

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in hplc chromatogram started from left to right and in uv spectrum started from left to right

889

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Difference between the quantitative analysis and qualitative analysis?

1106

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How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

3166

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How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7482

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How doing qbd practically?

916

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Why dissolution test is not performed in all of the products

2482

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how we can identify the impurity is coming below loq at transfering site?

808

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What is viod volume and peak purity in HPLC?

2812

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I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

3487

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If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

931

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We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1673

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what type of question will ask in the interview of lab chemist.

3262

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