what are peak purity,peak purity index,peak thresold2 11172
1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation1 10101
Why we are using K2Cr2O7 for control of absorbance in UV?2 9438
1 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv3 8808
what is the principal of malvern particle sizer & its used in pharma industry3 5323
In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?2 4567
same sample on two preapration gives differnt result during hplc analysis3 4574
Why we are using a Kf Factor range 4 to 67 30297
What is difference between Chromatographic purity and Related substances analysis?3 16339
What is the main difference between ODS1 and ODS2 Hplc column.
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
How 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?
What is third generation HPLC Columns?
what is difference between zero air gas and o2 gas
Qc interview questions
how can give the expiry period and restadardisation of volumetric solution
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
What is the difference between spectro meter and spectro photo meter?
why we use sodium salicylate in uv light calibration at TLC chamber
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
iam usig ph buffers merk. manually how to prepare ?