skip to primary navigationskip to content

Sample Preparation / Standards

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 which dimensions no large than 13.8 cm by 8 cm or combination of smaller blocks with same total area.  (13.5x3cm –preferable)


We have a set of NIST glass (610-614) for trace metal analyses of no ‘matrix’ challenging samples.

We also have a large collection of well-characterised carbonate standards (trace metals, Mg isotopes, U/Th, B isotopes).


Example of standards ample yolder (12 -1 inch +6 1/2 inch discs + 4glass slides)

RSS Feed Latest news

International team head to Papua New Guinea to measure volcanic carbon degassing

Sep 01, 2016

An international team of scientists is traveling to the islands of Papua New Guinea this September to study degassing from active volcanoes in remote jungles there. Some of these volcanoes are among the most active on Earth, ejecting a significant proportion of global volcanic gases into the atmosphere.

Mistaken Point - Canada's 10th geological World Heritage Site

Aug 02, 2016

The ancient rugged coastline of Mistaken Point on Newfoundland’s Avalon Peninsula face the winds and waves of the Atlantic Ocean. It can be a difficult place to work, but nevertheless it has been a mecca for geologists for over several decades now.

An underestimated Kevan

Jul 21, 2016

Douglas Palmer on the Sedgwick Museum’s giant Pliosaurus cf. kevani in the latest edition of Geoscientist

Oesia – a new tube worm from deep Cambrian times

Jul 21, 2016

Collections up close, Sedgwick Museum of Earth Sciences

View all news

Stories from the field...