Answer Posted / laxman rapolu

A Quantitative chemical reaction between water and
Anhydrous SO2 and Iodine in the presence of Base(buffer)
that reacts H+ ions
SO2+RN+CH3OH------>(RNH)SO3CH3
(RNH)SO3CH3+H20+I2---->(RNH)SO4CH3+2(RNH)I

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3622

---

what is third integration

1931

---

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1676

---

if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

634

---

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4005

---

how require to fix the linearity and accuracy cincentration range?

1577

---

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2567

---

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2074

---

how decide the clining method and cleaning method validation require for this perticular products?

705

---

mahagenco syllabus for the post of chemist

6429

---

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

850

---

in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2542

---

how to select short coloum and long coloumn for new molecule

2358

---

How do we fix the sample concentaryion in hplc method development?

1087

---

we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1806

---