i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...2 4658
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?1 5522
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.2516
What the difference in loss on drying and residue on ignition2 21418
In case of HPLC coloums what is the difference Between C8 & C18 coloums & how can we select difference type of coloums like Inertial ODS , Hypersil BDS , ODS etc.?4 25870
what is different between volumetric solution and general solution1 14608
what is primary solution and secondary solution2 5450
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
Tell me about analytical method validation in QC
what is the origin to prepare standard operating procedure
Why we check moisture,ash & AIA in product
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
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.
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
Difference between hlaf and rlaf
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
What is the acceptance criteria for moisture balance when calibrated with sodium sulfate
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?