why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?
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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 |
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plz tall me that any pharmacopeia and guideline is par meted to use 1.68,4.01,7.00,9.00,12.45 buffer for ph meter calibration
Organic Chemistry 
