Reply to "SPECTROIL M/C-W Oil Analysis Spectrometer in CAT SOS labs"

andrewMember

Couple of points

Advantages of Spec M
-Spec M requires no sample prep (dilution).
-has no running costs if you don't need it.
-Volatises 0-8µm particle sizes (more range than ICP)

Advantages of ICP
-Has the element Sulphur - less important these days with low sulphur diesel.

Cons of ICP
-High running costs if no samples done - constantly needs to be on, and while on consumes gas.
-can only volatilise samples between 0-4µm sizes.

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If you do less than 3000 samples a month go for Spec M definitely. Cost of each sample = electrode sharpened + electrode disc

= Rand 3.00 = < $0.30c per sample (probably cheaper if your in the US).

Only conside the ICP if you do over 3000 samples a month - it has high running costs associated with the fact it constantly uses gas even when not analysing samples. However the cost per sample is minimal.

Andrew

7/18/072:08 AM

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