Answer / rajasekhar

Difference between any two buffer intevels should be not more than 4 .so generally we use PH4,PH7.4,PH9.2

Answer / sudhakar tambe

It is three point pH calibration one acidic one basic and
one neutral.Buffer PH 4 is acidic 9.2 is basic and 7.4is
neutral

Answer / vijayakrishna

for to find the slop of ph and depending on temperature to use different buffer in calibration of ph

Answer / ramgepharma

there was nothing particularity in pH meter calibration, as per our utility in lab or products, we will fix those particular points
in my lab, 1.68, 4.00-acid
7.00-Neutral
10.01,12.45-base
and also we can follow as per usp or some other compendial specs

Answer / hemant hatwar

terai gand mai dalu gya electrode ..................

what is custom fields in waters system?

1 Answers   Akorn India, Aurobindo,

How to calculate the signal to noise ratio.

1 Answers   Rakshit Drugs,

what is weight veriation in pharma industry ? plz explain me

1 Answers  

What is blank titration of potentiometrically.

2 Answers  

how to prepare 5 normality of h2so4 solution

3 Answers   Symbiotec,

Tell me something about Vitamin A test method by HPLC

0 Answers   Lupin,

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

0 Answers  

A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 Answers  

why require the ph, buffer during hplc mobile phase?

0 Answers  

What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.

11 Answers   Laurus, Teva API,

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

0 Answers  

importance of internal standard and in what conditions it is used?

1 Answers