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1 4904In partical size by malven,which parameter is generlly change for development of dry and wet method.
1 3380WHY 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 10001what 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 8142I 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?
3540Post New Analytical Chemistry Questions
What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)
In IR spectra, generally a molecule vibrates without apply emr or ir light?
What is third generation HPLC Columns?
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
Why use only methanol,used determinationof moisture content not use other solvents
Why we use potassium dichromate in uv calibration Exact reason behind it??
what is the difference between potentiometric titration and karl fischer titration?
if rsd failed then what require to do?
how to get accurate result for Residue on evaporation in purified water
What is stray light in uv what are units for stray light
mode of absorption in alimentary canal?
What is the difference between chromatographic purity and related substances?
What is the purpose of octyl silane columns?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
