which solvent is highest poler
acetonitrile
dimethyl formamide
methanole
tetrahydrofurane
buffer solution

Answer Posted / mahesh

Dimethylformamide

Is This Answer Correct ?    1 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between spectro meter and spectro photo meter?

10430


what are the guidelines for analytical method validations?

597


what is mean by extactable and leachable study?

574


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1304


What is similarity factor and its use in api strength?

801






if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

280


what you do when compound having dwel wavelength?

285


what is the extinction coefficient for Indomethacin or at 319nm wave length.

3523


how you confirm the assay method?

291


calibrtion procedue of LC-MS

2151


How to fix the sample conc. in Related substances test by HPLC?

615


in which situation ion pair require to use?

281


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

1117


How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

2543


Related substance method equivalency on control sample or spiked sample?

306