Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?

1 Answers  

---

same sample on two preapration gives differnt result during hplc analysis

3 Answers  

---

What is AV value in test uniformity content ,describe calculation

1 Answers   Lupin,

---

control of resolution in calibration of IR

3 Answers  

---

what is the d/f b/w normality and molarity and molality..?

1 Answers  

---

---

what is role of pH in mobile phase

3 Answers   Cipla, Dhanuka Laboratories,

---

I have 1 gram of Diphenylamine and want to make a 10,000 or 1000 ppm solution in methanol. How do I make this?

9 Answers   Midas Technologies,

---

is a bonded water molecule in an organic material can be easlisy and accuractly determined by KF rather than LOD

2 Answers  

---

I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

0 Answers  

---

Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong? 

5 Answers   Claris Otsuka, Ranbaxy,

---

How to determine water content of bis tetrazole amine mono ammonium salt

0 Answers  

---

Why forced Digradition Study is done

6 Answers  

---