Answer / tanhaji b.

pH means hydrogen ion concentration.
Which help for constant Retention time and early peak elution.which is Selected on the basis of Pka and Pkb value .

what is PH of 0.1N Hcl, 0.01N Hcl & Mehanol.

3 Answers  

---

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

0 Answers   CMET,

---

in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

0 Answers  

---

can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????

2 Answers   Cipla,

---

for which product require to do content uniformity? what is limit of cu?

0 Answers  

---

---

From where require to take the RLD sample?

0 Answers  

---

how to calculate corelation coefficient in G.C Calibration? what is the calculation part?

1 Answers   Cipla, Ortin Labs,

---

Loss of linearity in tkn analysis, possible reasons?

0 Answers  

---

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

0 Answers  

---

what is the meaning of linearity,principle of co-relation coefficient?

3 Answers  

---

A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 Answers  

---

What is the Formula for coreletion coefficient in plhplc calibration

0 Answers  

---