plz tall me that any pharmacopeia and guideline is par meted to use 1.68,4.01,7

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

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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 buffe..

Answer / nagabhushan

We have to cover all regions like Acidic ,Basic and Nutrel medium in pH thatsy we use 1.68,4.01,7.00 ,9.0012.45 for 5 point calibration and there is another method for pH calibration that is 3 point calibration in this we use 4.00,7.00and9.20 buffers overall concept is to cover all regions in pH calibration

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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 buffe..

Answer / parsuram drl

Acid to base limit is 1 to 14 if cover 1,4,7,10,12 that also correct for ph calibration

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