How to Prepare Dilute Sodium hydroxide solution?

3 Answers   Claris Otsuka,

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Is it necessary to validate both assay and related substances for usp official methods for products.

6 Answers   Apotex,

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in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

4 Answers   Dr Reddys, Hetero,

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In UV-VIS spectrophotometer:My diluent is methanol even though i corrected base line for methanol,In my sample scan i found methanol peak.what is the reason?

2 Answers  

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In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

0 Answers  

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What is Endcapped Hplc column

2 Answers  

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The boiling point of 1,3 butadiene is -4.4 DC & the boiling point of Pentane is 36.1 DC. Then how come Pentane elute before 1,3 BD in GC analysis?

1 Answers  

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calibrtion procedue of LC-MS

0 Answers   GVK, Matrix,

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In burette calibration of Karl fischer Instrument, the multiplication factor 1.00693 is using for how much ml of water dispenced. why

1 Answers  

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What is (Q) point dissolution?

6 Answers   Cipla, Macleods,

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Why use in sodium salicylate in uv lamps calibration

1 Answers   Auctus Pharma, Reddy Labs,

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Related substance method equivalency on control sample or spiked sample?

0 Answers  

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