How to decide restandardisation due or retest or expiry of
Volumetric solutions prepared in wet chemistry lab?
Answer Posted / siva
To establish retest or expiry date of volumetric solutions
we have to conduct stability study i.e. day 1 to day 30
through a protocol. based on results we can establish
retest date of volumetric solutions.
Acceptance criteria : At fixed intervals check
predetermined specifications i.e. Apperance and Strenghs. %
RSD for particular intervals shall not more than 1%.
| Is This Answer Correct ? | 10 Yes | 3 No |
Post New Answer View All Answers
What is gelatinization?
What is third generation HPLC Columns?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
What is the Formula for coreletion coefficient in plhplc calibration
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18
What is dose dumping? why require to do?
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?
What is a difference between potency and purity?
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
what is partion and column chromatography
How to set analyticl specification for combination products?
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
What is the principle of Thermal conductivity detector and FID?