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

1804

Examine samples of ldpe (sandwich bag, squeeze bottle) and hdpe (milk jug, grocery bag). What are some of the differences in the physical properties of these substances? : Polymer Chemistry

1116

What do you mean by redox reaction? : Electrochemistry Corrosion

881

WHAT IS THE SYLLABUS OO GROUP -I?

2237

Explain what are enzymes?

1106

How is measurement of ph made?

997

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9693

Basic principle of ESI?

2096

What is use of acetonitrile compare to methanol in RP-HPLC Method development?

1944

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?

1909

Protactinium-233 can be bred from Thorium-232. Describe the process of breeding Protactinium-233 and its significance for nuclear fuel production.

563

what is mean by ambient temperature?

863

Consider the polymerization of 1,2-dichloroethylene, h(cl)c=c(cl)h. What structural variations are possible in poly(1,2-dichloroethylene)? : Polymer Chemistry

1280

please explain about aluminium hydroxide assay

1091

we can use expired sample for validation and analyst qualification?

751