what is a differance between assay by HPLC and assay by
titration?
Answer Posted / sridhar
some of the compound are not response in uv-vis region in
this case go for titration for determine the assay in product
| Is This Answer Correct ? | 19 Yes | 1 No |
Post New Answer View All Answers
acceptance criteria for lod & loq by standard deviation of response and slope??
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
Why we use potassium dichromate in uv calibration Exact reason behind it??
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
Difference between the quantitative analysis and qualitative analysis?
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 THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
could negative ions be produced by bombardment process in mass spectrometry?
In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?
how we can identify the impurity is coming below loq at transfering site?
How to calibration of the uv spectroscopy and its test?
in sampling of raw material which side is pasted sampled labels