what are the ideal conditions for coloumn storage

Answer Posted / krishna

acn:water 7:3

Is This Answer Correct ?    3 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2129


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2161


why does used dry caffien in HPLC calibration?

1534


What are the primary considerations in extractables and Leachables ?

1751


which are the diffrent batches in the pharmaceuticals?

319






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?

2172


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?

2945


What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1112


what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1467


If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

285


What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1735


For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

3465


for which product require to do content uniformity? what is limit of cu?

283


inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

258


How to set analyticl specification for combination products?

276