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In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?
8 58919In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?
1 10035How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?
NCL,
3355How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
NCL,
3864
How can we calculate offset value pH measurment
why athanol-water mixtuere have maximum viscocity in wt% 40?
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
Basic principle of ESI?
How to fix the sample conc. in Related substances test by HPLC?
Explain how many moles of hcl are present in .70 l of a .33 m hcl solution?
What is titration?
In rs method development when we are going area normalization method to dilute standard method?
Explain the chemical formula for dichromate?
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What is rs test why we are performing rs test?
is it nessesary to do solution stability for 7 days?
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Which parameter require to do for analytical method equivalency?
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?
