Hi,

The weighing balance from Mettler Toledo (30078800) should do the job. You should perform a calibration before doing the measurements to make sure your measurements are accurate.

I have balance ( 0.0000) model 45 lngeland S.N.

For elemental content analysis, accurate weights must be obtained by using a microbalance (0.001 mg) or an analytical balance that goes to 0.00001 g. For analysis where only isotope data are of interest, samples can be weighed less accurately on a regular analytical balance (0.0001 g or 0.00001 g).

I know in Iraq not have.. but in Rauss yes.