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 Categories >> Sciences >> Chemistry >> Analytical Chemistry
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Question Asked @ Answers Views     Select
What is chiral and why this performing in HPLC    0  4
What is the difference between kf  and LOD    1  12
What is the reason of RT change in new column v/s old column in HPLC    1  20
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  21
If mass balance is not passing in forced degradation in method validation that method is suitable or not?    0  10
Why we use uracil and caffeine in hplc calibration    2  37
What is method validation in quality control    0  21
why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?    2  38
what is rt and rrt? how we find rrt? relation between rt and rrt/    0  22
Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV    2  48
Is it required to inject 6 injections for % RSD of a system suitability in lc or gc    1  39
In performance Check of GC Why Hexadecane Peak is Considered     0  39
why we get only one peak in assay by hplc but in rs by hplc get more peaks    1  58
difference between quality and quantity    2  63
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Un-Answered Questions
 Question Views   Select
importance of internal standard and in what conditions it is used? 208
For LOD and LOQ determination which method is accurate? (slopemethod or s/n ratio method) 67
why hexadecane is used in calibration of FID IN GC THERE IS NO REMAINING SOLVENTS 264
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration? 283
Why Ethanol is Used for Standardization of GC Head space? 648
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % ) 352
How much is the standard area for glc analysis 179
How to determine water content of bis tetrazole amine mono ammonium salt 46
how can I make the copper get white bye any salt or acit? 199
what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density? 257
what is the origin to prepare standard operating procedure 88
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ? 411
What is importance of pH in the Heavy metal test and How it effect on the test results? 121
If mass balance is not passing in forced degradation in method validation that method is suitable or not? 10
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