Sample preparation
Different types/size geological sample can be accommodated in our Laser Ablation system because of its in-house designed sample holder. There are several requirements for the samples:
- Polished 1 or ½ inch epoxy disc
- Standard (7.3 x 2.5 cm) sample thin-section / or grains of sample (foraminifera shells) attached to the glass slide using carbon tape
- Semi-flat/polished slab of rocks/coral speleothems with dimensions no larger than 13.8 cm x 8 cm or combination of smaller blocks with same total area. (13.5 x 3cm –preferable)
Standards
We have a set of NIST glass (610-614) for trace metal analyses of silicate based samples.
We also have a collection of well-characterised carbonate standards (trace metals, Mg isotopes, U/Th, B isotopes).
