Answer / dhanalakshmi

SO2 is very good refregerent,it can easily liquify at
ordinary atmospheric pressures ,ice and salt is used to
absorb the most of the SO2 gas which is not liquified .

acceptance criteria for ph meter, hplc detector,pump,injector,oven when we calibrate.

3 Answers  

---

stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?

2 Answers   Nakoda Chemicals,

---

whate is difference between calibration and validation

11 Answers   Alkem Labs, Cipla, Ranbaxy, Torrent Pharma, Zydus Cadila,

---

What is the formula for Tapdensity /

6 Answers   Dr Reddys, GR Intrachem,

---

How can you calculate manually "Slope" in pH calibration?

2 Answers   Hetero,

---

what king of work is done in Regulatory Affairs in Pharma industry ?

3 Answers   Quintiles,

---

how to pepare 6.8 pH phosphate buffer

10 Answers  

---

Generally for Normal Phase HPLC,stationary phase is Polar.In place of polar if we take non-polar means what happened & why?

7 Answers   Macleods,

---

Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

6 Answers  

---

For LOD and LOQ determination which method is accurate? (slopemethod or s/n ratio method)

4 Answers   Reddy Labs,

---

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

0 Answers   Alembic,

---

what is the difference between BDS and ODS Columens and both are same or not

2 Answers   Intas, IPQA, Micro Labs, Vasava Engineering Private Limited,

---