WHAT IS THE USE OF STARTER ?????????

1980

what you do when compound having dwel wavelength?

360

identification is for unknown? qualification for known? reporting for LOQ?

357

if you get peak in blank then what require to do?

545

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1058

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

382

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1828

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

1420

how much mass should be there in volumetric flask while in preparation of sample for assay? 

2126

we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1431

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?

3065

sop of a uv visible spectrophotometer double beam elico model

5440

What are the primary considerations in extractables and Leachables ?

1849

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3276

how to decide for one product require water content or LOD?

404