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 Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
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Question Asked @ Answers Views     Select
What is the difference between kf  and LOD    1  9
What is the reason of RT change in new column v/s old column in HPLC    1  17
What is the reason for negative peak in HPLC while using UV detector.    0  12
Why we compare unequal concentrated solutions in heavy metals test. For example comparing the test solution with 1 ppm lead standard and telling it's less than 20ppm?    1  18
If mass balance is not passing in forced degradation in method validation that method is suitable or not?    0  9
Why we use uracil and caffeine in hplc calibration    2  33
What is method validation in quality control    0  20
why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?    2  35
what is rt and rrt? how we find rrt? relation between rt and rrt/    0  21
Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV    2  45
Is it required to inject 6 injections for % RSD of a system suitability in lc or gc    1  37
In performance Check of GC Why Hexadecane Peak is Considered     0  38
why we get only one peak in assay by hplc but in rs by hplc get more peaks    1  55
difference between quality and quantity    2  61
wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language    0  31
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Un-Answered Questions
 
 Question Views   Select
 
why equlirium conatant of water have 14 value 103
in loss on drying Why follows on constant weight not more than 0.5 mg, any region 232
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer? 254
For LOD and LOQ determination which method is accurate? (slopemethod or s/n ratio method) 66
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ? 94
Nitrogen test is used for which chromatography? 139
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg? 238
HOW TO CALIBRATE HPLC OVEN 150
why we use a particular hplc column for a particular compound give reasons?please 375
how do we get usp reference standard potency? 184
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from? 229
what does 'n' stands for in spectroscopy?give the formula. 78
calibrtion procedue of LC-MS 222
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ? 569
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY 269
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