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1 4835In partical size by malven,which parameter is generlly change for development of dry and wet method.
1 3294WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?
1 9892what is dissolution What is unit of KF? what is the significant of pH in HPlc? WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector?
1 8036I 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?
3495Post New Analytical Chemistry Questions
Which parameters require to do in tech transfer?
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
what are risk assement in the analytical qbd?
why digestion require in icpms?
Why six unit used for precision?
which are the diffrent batches in the pharmaceuticals?
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.
in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?
if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?
how you determine moist.of NaOH sol or NaOH flacks
why cone formation during dissolution?
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?
