why disodium tartarate used in karl-fischer instrument ?.

1 Answers   Dishman,

---

which detector is used in IR

3 Answers   Hetero,

---

Near infrared Principle

1 Answers  

---

In GC, What does 'Column condensation test' mean by?

2 Answers   Reddy Labs,

---

i want to know about headspace and interview question on headspace

1 Answers   Srikem Laboratories,

---

What is the column performance and column efficiency?

2 Answers   Reddy Labs,

---

In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?

1 Answers  

---

In Agilent HPLC calibration using Empower 3 Software, What is the criteria for GPV Baseline starting point? i.e., Either it can start from -0.00/+0.00 or any range is there like -0.05 to +0.05 or ......etc?

1 Answers   Apotex,

---

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  

---

Which is the highly polar and highly non polar column in HPLC?

0 Answers  

---

Why we don't add Hcl, HNO3, H3PO4 in residue on ignition, why we add H2SO4

1 Answers  

---

give tha clarity about peak purity concept

3 Answers   Aurobindo, Reliance Life Sciences,

---