Mass Spectrometry & Spectroscopy

  • New Empirical Method for Kaolin Clay Analysis

New Empirical Method for Kaolin Clay Analysis

May 30 2012 Read 1373 Times

Applied Rigaku Technologies, Inc have announced a new empirical method for the elemental analysis of analysis of titanium and iron in kaolin clay. Application Note #1187 demonstrates the effectiveness of the filtered direct excitation design of the Rigaku NEX QC energy dispersive X-ray fluorescence (EDXRF) analyser for analysis during the QA/QC process in the production of clay-based products.

Kaolin clay has a broad range of uses, from pottery and ceramics to coated paper and as an additive in toothpastes and cosmetics. It is also widely used in the production of paper. The titanium and iron present affect the colour and physical properties of the clay, and so must be closely monitored throughout QA/QC processes to ensure proper ratios for each given product type.

For this application the samples were ground to <200 mesh (<75um particle size). Typically, a shatterbox or a ball mixer/mill is used to grind samples. To eliminate any potential contamination bias from the grinding surfaces, iron or steel grinding accessories should not be used. For optimum grinding, it is recommended to use zirconium agate, tungsten carbide, or other suitable hard surface grinding equipment. For this study, 3g of powder was placed into a standard 32mm XRF sample cup and tap-packed before analysis.

The results show that the Rigaku NEX QC analyser provides exceptional performance for the measurement of titanium and iron in kaolin clay and offers a simple and fast means of analysis during the QA/QC process, as well as for screening at the quarry.
 

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment





Digital Edition

Lab Asia August 2020

August 2020

In This Edition Chromatography - Measurement of Pesticides in Cannabis sativa and Hemp Matrices - Biphenyl Modified Silica Stabilised by Bulky Substituents - Wettable Phase for Analytical a...

View all digital editions

Events

ACS National Meeting & Expo, Fall 2020

Aug 17 2020 Virtual event

Chemspec India 2020 - CANCELLED

Aug 19 2020 Mumbai, India

EMC2020 - CANCELLED

Aug 23 2020 Copenhagen, Denmark

DioXin 2020 - EVENT CANCELLED

Aug 30 2020 Nantes, France

View all events