why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?
Answers were Sorted based on User's Feedback
Answer / rajasekhar
Difference between any two buffer intevels should be not more than 4 .so generally we use PH4,PH7.4,PH9.2
| Is This Answer Correct ? | 2 Yes | 0 No |
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
| Is This Answer Correct ? | 3 Yes | 3 No |
Answer / vijayakrishna
for to find the slop of ph and depending on temperature to use different buffer in calibration of ph
| Is This Answer Correct ? | 1 Yes | 1 No |
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
| Is This Answer Correct ? | 0 Yes | 3 No |
Answer / hemant hatwar
terai gand mai dalu gya electrode ..................
| Is This Answer Correct ? | 2 Yes | 6 No |
Why KBr pellet is used in IR?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
why r u using hplc grade solvents
What is Rf value& Rx value in TLC?
why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?
how to qualify the impurity?
defination of wavelength & wave number
What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.3
2 Answers Dr Reddys, IPCA, Reddy Labs,
What is quality controle.
who is the father of HPLC?
What is the difference between low pressure gredient and high pressure gredient in hplc instrument?
what is the need of calulation of RRF of impurity in HPLC analysis?