Why pyrene is also use for calibration if detector
Bcoz. It gives higher absorbance band ,lambda max 373 nm .rather than caffeine. That's why
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How can we calculate offset value pH measurment
why 1.2%kcl solution is using in limit os straylight?and why this test used for uv calibration?
1 Answers Graviti Pharmaceuticals, Reddy Labs, Vimta Labs,
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
What is column dead volume?
what is procedure of actual procedure for registration of drug?
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
What if impurity area in control sample coming more as compared to LOQ level of impurity ?
Give me details about dissolution , with name ?
What is normality
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
why base line not start from zoro in GC Chromatograme.
What is the difference between GSC & GLC?