Answer Posted / sp

The principal of HPLC is Adsorption.

what is partion and column chromatography

2300

---

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7474

---

which batch require to use for analytical method validation?

749

---

how the compound separate in coulunm,explain

2444

---

What is the difference between spectro meter and spectro photo meter?

11343

---

In which situation we require to analytical method validation of excipient?

732

---

what is mean by covalidation

730

---

what is definition of validation? which components are followed give detail?

2292

---

what is the structure of DOWEX-50

5451

---

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1575

---

mahagenco syllabus for the post of chemist

6426

---

What are the primary considerations in extractables and Leachables ?

2214

---

for inorganic molecules require to do RS, Assay and disso?

668

---

What is Band broading effect explain

1827

---

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

1546

---