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Who discovered X-ray
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Why we use caffeine for HPLC calibration in Detector wave ength accuracy test
60 Answers Arvind, Aurobindo, Cipla, Reddy Labs, Shasun Chemicals,
why we use glass fiber filters use in some situation?
How to set specification of assay, fisdolution and related substances?
Why we more noise in PDA detector compared to UV detector?
In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?
water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
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?
In the gas chromatography what is used carrier gas and make up gas?
What is the meaning of 624 in DB-624 Capillary column used in GC?
Is there any difference in principal of reverse phase and normal phase chromatography? and why? Please update. Thank and regard
what is the effect of injection volume calculate flow rate in perkin elmer headspace? (ccm parameter in HS)
Organic Chemistry 
