In Karl Fischer titration,What is the situation if the
material tested is only soluble in water,and not soluble in
the common solvents used such as methanol ?? [e.g. Iron III
Hydroxide polymaltose]
Answer / sana
We go to thermoprep it is a different technique apart from kf
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What is column dead volume?
i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...
Loss of linearity in tkn analysis, possible reasons?
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
which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?
what is the basic principle of conductivity meter
In GC and HPLC ,how we can decide which of following method will be suitable or use for quantitation of chromatogram at the time of method development. 1.Area Normalisation 2.External standard method 3.Internal standard method
How will you select mobile phase in HPLC Method Development
Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?
What is similarity factor?
What is the principle of Thermal conductivity detector and FID?
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?