𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Correct Use of Platinum in the XRF Laboratory

✍ Scribed by David F. Lupton; Jürgen Merker; Friedhold Schölz

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
846 KB
Volume
26
Category
Article
ISSN
0049-8246

No coin nor oath required. For personal study only.

✦ Synopsis

The use of crucibles and dishes made of platinum and its alloys in the preparation of samples has become an essential feature of XRF analysis. The broad application of platinum results from its near-perfect oxidation resistance and its excellent resistance to corrosive attack by metal oxide melts such as XRF Ñuxing agents. However, a few basic rules must be adhered to if platinum ware is to give satisfactory service. A number of "platinum poisons,Ï which are commonly encountered in samples, can cause destruction within a few sample preparation cycles. These "poisons,Ï the reasons for their corrosive e †ects and techniques for minimizing or eliminating their inÑuence are outlined.

📜 SIMILAR VOLUMES

Determination of trace elements in aqueo
Determination of trace elements in aqueous solutions using the EMMA miniprobe XRF analyzer
✍ Andriy K. Cheburkin; William Shotyk 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 109 KB 👁 2 views

The energy-dispersive miniprobe multielement analyzer (EMMA) is an XRF instrument to measure trace elements (As, Cr, Cu, Fe, Ga, Ge, Hf, Mn, Ni, Pb, Rb, Se, Sr, Th, Y, U, Zn) in small samples (down to ca 10 µm). Originally designed and constructed for analyzing individual mineral grains from rocks,

On the use of the Waterhouse correction
On the use of the Waterhouse correction
✍ S. Uosukainen 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 274 KB

The classical form of the Waterhouse correction, the purpose of which is to take account of the higher energy density near room boundaries, has been developed to an improved form, which is a function of room modal density. The Waterhouse correction can be determined for each room by measuring or cal