why phepolphthalene giving pink color when we titrate against to NaOH Solution ,giving colrless titrating aginsiting with acids?
2 4091what is the difference between loss on drying in ordinary oven technique and vacuum oven technique
4 13275what is the difference between LOSS ON DRYING IN ORDINARY OVEN TECHNIQUE AND VACUUM OVEN TECHNIQUE
6 22757why we are using only lead standard solution for Heavy metals test? what is the purpose of this?
4 11953what is the difference between the ordinary loss on drying technique and vacuum oven technique?
1 7611what is the difference between gc& hplc. why we r not calculating purity by gc for final products
5 14662Post New Analytical Chemistry Questions
if tech transfer fails whay require to do?
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
WHY pKa value is more important than pH value of the mobile phase in HPLC?
Which parameters require to do in tech transfer?
CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
Qc interview questions
how you start RS method development when for new product?
if you get peak in blank then what require to do?
What is rs test why we are performing rs test?
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
What is the use of tlc and hplc? And when and where use?
