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In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
What is mean by peak tailing in case of GC?
how to convert normal phase hplc to reverse phase and vice versa?
pda detector mechanism?
1 Answers DKR, Teva Pharmaceuticals,
How to set specification of assay, fisdolution and related substances?
what is dwell volume in HPLC?
2 Answers Aurobindo, Cadila, Strides, SUN, Sun Pharma,
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
Why use only methanol,used determinationof moisture content not use other solvents
what is the criteria for choosing capillary column in GC??is it dependent on sample load?
how you establish the LOQ?
what is the effect of injection volume calculate flow rate in perkin elmer headspace? (ccm parameter in HS)
how many types of Proceing methods?