Wednesday, April 28, 2010

Comparison of Chemical Analysis undertaken by TCR

Analysis technique

Detection Range

Typical accuracy

Advantage

Limitation

EDS

Boron – Uranium

± 0.5 % absolute

Non destructive Technique.

Can be used on very small size components

It is a surface analysis. If the part is coated then it may analyze only coating.

PMI

Sodium - Uranium

± 10 % of the value

Non destructive technique.

Can not detect Al, Si, Ag,

Spectro

 

Can measure up to 0.01, and even better for certain elements.

Very accurate

Require sample of at least 15 mm dia. Some times it is possible with 12 mm dia. also

Wet analysis

All elements

Conventional Wet  up to 0.1 %

About 5 to 10 Gms sample required.

Can detect

Takes time about 3 – 4 working days.

ICP/ AAS

All elements

Accuracy up to ppm levels.

5 to 10 gms sample required.

Takes time about 10 – 15 working days.

At TCR we can do chemical analysis with all the above given techniques.

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