Why triethylamine and o-phosphoric acid used while setting
pH of mobile phase during HPLC Analysis?

Answer Posted / valla priyanka reddy

triethylamine is added for good shape of peak

Is This Answer Correct ?    14 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

As per ICH related substances stability trend limit from initial to shelf life

2678


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2220


how to set sample and standard concentration in RS method?

368


what is mean by covalidation

325


We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1163






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

1121


What is control room temperature and which guide line says?

1162


How we can identify process related and degradation impurity in single method with short period?

340


what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

8465


What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

1555


why does used dry caffien in HPLC calibration?

1573


Why to use propyl paraben in HPLC gradient calibration

6106


Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

992


why require the ph, buffer during hplc mobile phase?

411


Tell me about analytical method validation in QC

5568