Answer Posted / k r laxmi

Holium cholorate is give the absorbance at both UV-VIS Range

if you have given a blank water how you analyse by general analytical techniques?

2083

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how many types of balance calibration test?

2355

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can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

2227

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we can use expired sample for validation and analyst qualification?

862

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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?

3584

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Why a1% value is used for some product ? What is the criteria for selection a1% value ?

2394

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What is related substance by HPLC impurity limits as per USP?

1153

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We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1965

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what is mean by peak intigrity?

1027

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why multimedia dissolution require to do?

867

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What is the use of tlc and hplc? And when and where use?

1211

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what is mean by dissolution hydrodynamics?

886

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Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1966

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3263

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if peak get problamatic then what require to do?

861

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