Answer Posted / suresh reddy.b

1 gram of DPA dissolved in 1000ml of methanol gives
1000ppm.it is ok in case of purity of DPA is 100 % if it is
50% it is 2 gram of DPA dissolved in 1000ml of methanol
gives 1000ppm.

1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1900

---

cefoperozone and sulbactam inj. hplc test method

2741

---

why cone formation during dissolution?

844

---

all types of questions asked at the cipla interview

4716

---

in api coa contains only process impurities and in product coa contains degradation impurities?

733

---

If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

816

---

process of Diclofenac sodium,IP.

2284

---

what is the structure of DOWEX-50

5559

---

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2211

---

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1964

---

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?

3577

---

What is a difference between potency and purity?

1259

---

How do we fix the sample concentaryion in hplc method development?

1185

---

HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2306

---

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2628

---