Search Results

You are looking at 1 - 2 of 2 items for

  • Author or Editor: W. Wimolwattanapun x
  • Refine by Access: All Content x
Clear All Modify Search
Journal of Radioanalytical and Nuclear Chemistry
Authors:
S. Laoharojanaphand
,
W. Dharmavanij
,
A. Busamongkol
,
R. Pareepart
,
W. Wimolwattanapun
, and
W. Chantarachot

Abstract  

Research and development in activation analysis at the Thailand Institute of Nuclear Technology has been carried out over 40 years. The main activation source is from the TRIGA type research reactor TRR1/M1. Average in-core flux is around 1013 n·cm−2·s−1. Experience on the analysis of various kind of samples range from environmental field especially air particulate, ores, rocks and soil for natural resources exploration as well as industrial applications. Elemental composition in silk thread, silk cocoon and silk products from the royal silk project are one of the research work done incorporation with the Queen Sirikit Institute of Sericulture. Food items are also another topic of interest to our research team.

Restricted access
Journal of Radioanalytical and Nuclear Chemistry
Authors:
M. Ebihara
,
Y. Chung
,
H. Dung
,
J. Moon
,
B. Ni
,
T. Otoshi
,
Y. Oura
,
F. Santos
,
F. Sasajima
,
Sutisna
,
B. Wee
,
W. Wimolwattanapun
, and
A. Wood

Abstract  

Air particulate matter (APM) samples (PM2.5 and PM10–2.5) were collected at 13 sampling points in 8 Asian countries and their chemical compositions were determined by using neutron activation analysis (NAA) with the k 0-standardization method in addition to conventional comparative method of NAA. Analytical data showed that mass concentration and elemental composition of the APM collected are variable in terms of time and space, and are related to the characteristics of the sampling sites concerned. NAA was proved to be highly effective for the regional characterization of APM in chemical composition.

Restricted access