Answer / upendra

HI is strong acid, in Karl Fischer the pH limit is about 5 to 8, so first we have adjust the pH of HI.
For that we use imidazole.
Then we can seen the moisture as normal sample.
Thanks. Upendra Gohil
Reliance , jamnagar

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

0 Answers  

---

what is difference between IR & FTIR ? how we calibarte both ? I want to know the procedure.

7 Answers   Cadila,

---

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

2 Answers  

---

how do we get usp reference standard potency?

1 Answers   Ind Swift Laboratories, MSN Pharma,

---

Why dst is used in kf for factor determination less than 1

4 Answers   Reddy Labs, Sun Pharma,

---

---

what is the Bracketing & Matrixing.

8 Answers   Dr Reddys, Ranbaxy,

---

How to prepare 50 ppm ammonia solution form 25% ammonia solution?

8 Answers   Cadila, IIT,

---

In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

1 Answers  

---

Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

0 Answers   Aurobindo, Reddy Labs,

---

what r the reasons to get peak telling?

6 Answers   Cipla,

---

What is intact assay method development.....?

0 Answers   Neon, Orchid,

---

what is the relation of normality & molarity ? give me formula?

5 Answers  

---