TY  - JOUR
ID  - myais2268
UR  - http://myais.fsktm.um.edu.my/2268/
IS  - 1
A1  - Masitah Alias,  
A1  - Zaini Hamzah,  
A1  - Ahmad Saat,  
A1  - Muhamat Omar,  
A1  - Zakaria Tajuddin,  
N2  - Naturally occurring radioisotopes such as 238U and 232Th are present in earth?s crust producing uranium and thorium daughters such as 226Ra and 228Ra. Radium is found at low level in soil, water, rocks, coal, plants and food. 40K also exist in the earth crust with a concentration of about 1.8 mg/kg or 13 pCi/g. In this study, the activity concentrations of 226Ra, 228Ra and 40K were determined in topsoil samples collected from 10 acres of oil palm plantation in FELDA Jengka 15, Maran District, Pahang Darul Makmur. 350 g of dried samples were ground and packed in a plastic container and allow to stabilize for at least three week before counting using gamma spectrometer with Germanium hyper pure detector (HPGe). The gamma spectra were analyzed using Genie 2000 for the activity concentrations of 226Ra and 228Ra and 40K. The results show the range of 10.5 ? 35.3 Bq/kg for 226Ra, 11.4 ? 42.8 Bq/kg for 228Ra and 11.3 ? 156.6 Bq/kg for 40K. 
VL  - 9
TI  - Determination of 226Ra, 228Ra and 40K in Soil from Felda Jengka-15 Oil Palm Plantation
AV  - public
EP  - 132
N1  - My sincere thanks the Universiti Teknologi Mara (UiTM) for financing this project through BRC Grant No 600-BRC/ST.5/3/599, and special thanks are also due to Masood Bin Mohamad (land owner), Encik Zahir, Encik Din (both from UiTM Jengka); Cik Zalina Laili and Puan Rusni Rejab (both are from MINT) for their assistance.
Y1  - 2005///
PB  - ANALIS
JF  - Malaysian Journal of Analytical Sciences
KW  - Gamma spectrometry
KW  -  topsoil
KW  -  natural radioisotopes
SN  - 1394-2506
SP  - 126
ER  -