What is differences between normality and molarity.in which cases both are used?

1 Answers   GVK,

---

how std. of znso4

1 Answers  

---

same sample on two preapration gives differnt result during hplc analysis

3 Answers  

---

What is post run in hplc?

1 Answers   Cipla,

---

what is the lamp used in SOR?

18 Answers   Aurobindo,

---

How to prepare 1000ppm methylene blue solution

2 Answers  

---

why buffer is added in solvent system in HPLC ??

10 Answers   Lupin,

---

As per ICH related substances stability trend limit from initial to shelf life

0 Answers   Medley Pharmaceuticals, Micro Labs,

---

How doing qbd practically?

0 Answers  

---

why SGF media used for dissolution . What is the use of it .can we use other media of lower pH instead ot this?

1 Answers  

---

why sucrose used in polarimeter calibration?

2 Answers   Reddy Labs, Sugar Factory,

---

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  

---