Answer Posted / mahesh

1 mg/mL is 1000 ppm

for which product require to do content uniformity? what is limit of cu?

819

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1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1854

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why we use glass fiber filters use in some situation?

800

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what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2630

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

979

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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?

3540

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What is similarity factor?

1206

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why octanol used to determine the partition coefficient ?

2458

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What is viod volume and peak purity in HPLC?

2884

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Why use only methanol,used determinationof moisture content not use other solvents

1408

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what is partion and column chromatography

2392

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In Dissolution Test why limit is define Q+5% what is the role of +5%.

3104

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What is the diference between residual solvents and organic volatile matter

2055

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in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

840

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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

1917

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