Answer / b.gangatharan

Non purgeable organic carbon.

how do you perform reverse enginearing study for drug containing sodium chloride sodium citrate sodium bicarbonate

1 Answers   Strides,

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Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

1 Answers  

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Do you have experience with organic extractions or tissue digestions?

1 Answers   GVK Biosciences,

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Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?

6 Answers   Hapten Healthcare, Pharmaceutical,

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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 dwell volume in HPLC?

2 Answers   Aurobindo, Cadila, Strides, SUN, Sun Pharma,

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As per USP u/vacuum means (how much vacuum should be applied)?

1 Answers   Mylan,

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Polarized meter calibration, 1. Method name? 2. Which solution use? 3.why?

1 Answers  

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WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

2 Answers   Aurobindo,

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why we use only sucrose in the calibration of polarimeter?

7 Answers   Kilitch,

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How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

0 Answers  

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In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

0 Answers   APL,

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