Optical Rotation*0.9477*100*200]
Assay Of dextrose= ________________________________
99.8* 200
why Factor=0.9477



Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ ..

Answer / nagendra rane

Specific Optical Rotation [α]tλ = 100 x a
---------
l x C

Where Specific Optical Rotation at temperature “t” and “λ”
is wavelength

a = Optical Rotation
l = length of Polarimeter tube
c = Concentration
The average Specific Optical Rotation of Dextrose
α = +52.76

Therefore C = 100 x a (Optical rotation)
---------------------------
2 x α

C = 100 x a (Optical rotation)
---------------------------
2 x 52.76

C = a X 0.9477
Concentration of Dextrose(C)= OR(a) x 0.9477

Is This Answer Correct ?    16 Yes 4 No

Post New Answer

More Analytical Chemistry Interview Questions

in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases

4 Answers   Aurobindo, Cadila, Martin,


One pH means how much volts and milivolts?

7 Answers   Dr Reddys,


What is the function of end capped column?

5 Answers   Cipla,


Difference between uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?

3 Answers  


Why methanol & acetonitrile is mostly used for hplc analysis?

2 Answers   DRL,






what are the guidelines for analytical method validations?

0 Answers  


if the flow rate is increases then any changes in retention time in hplc

1 Answers  


What are modes of quantification in related substances

0 Answers   Hospira,


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

0 Answers  


why 0.1M OR 1M Perchloric acid standardisation done after 24 hours?

1 Answers   Cipla,


why we are using in ph calibrations ph4,7,9.2 buuffers only?

3 Answers   Reddy Labs, Unichem,


In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

0 Answers  


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)