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Which column is more polar, C8 or C18?
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What is the main difference between ODS1 and ODS2 Hplc column.
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
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calibrtion procedue of LC-MS
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Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
Why Ethanol is Used for Standardization of GC Head space?
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We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
in which situation require to take incident in validation?
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
what is partion and column chromatography
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
Qc interview questions
