From where 16 or 5.545 is derived in theoretical plates
calculation formula by USP or JP/BP/DAB and what is meaning
of this coefficient and impact in calculation ?

Answer Posted / dr. sp goswami

it comes auto width algorithm, also by calc of plate
thickness and how many plates can be in imaginery plates
when width is measured at 13.4% of the height(USP),50%(JP)%
By tangent to the baseline so every time due difference in
percent height calc in USP,JP, BP,DAB,EMG and 5sigma,4
sigma ,3 sigma there will be different values for this
coefficient like 16(USP),5.545(jp) etc
regards

Is This Answer Correct ?    6 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Please give idea about method development for cleaning method and how maco level establish

270


What is Band broading effect explain

1400


What is stray light in uv what are units for stray light

1020


In Dissolution Test why limit is define Q+5% what is the role of +5%.

2572


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2351






why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

2341


In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

457


mahagenco syllabus for the post of chemist

5744


In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

2601


What is gelatinization?

1174


how to select short coloum and long coloumn for new molecule

1818


In rs method development when we are going area normalization method to dilute standard method?

943


Did anybody have method for acetyl cysteine effervescnce tablet

1808


which situation gc hs and gc als require to use?

297


what is mean by ambient temperature?

344