TY - BOOK
T1 - X-ray fluorescence in Member States: Philippines. XRF activities at Analytical Measurements Research Group, Philippine Nuclear Research Institute
AU - Pabroa, Preciosa Corazon B.
AU - Castaneda, Soledad
AU - Almoneda, Rosalina V.
AU - Sucgang, Raymond
AU - Racho, Joseph Michael D.
AU - Morco, Ryan
AU - Cuyco, Danilo A.
AU - Jimenez, Gloria R.
AU - Santos, Flora L.
PY - 2008/12/15
Y1 - 2008/12/15
N2 - XRF analysis and activities of the Analytical Measurements Research (AMR) Group (see Fig.1) of the Philippine Nuclear Research Institute (PNRI) focus on both research and analytical services. Air pollution research, in particular source apportionment studies, requires multi-elemental data for a substantial number of samples. In the PNRI, energy-dispersive X-ray fluorescence (EDXRF) has been used as an effective tool for providing such multi-elemental data. With the latest acquisition of the Panalytical Epsilon 5 (E5) EDXRF system, the process of quantification has become easier and faster with the auto-quantify method. Other research involvements of the group are in the analysis of samples in relation to mineral explorations and the elemental characterization of water in support for isotope hydrology research. The AMR group, as part of its function to provide analytical services, offers qualitative or semi quantitative analysis of solid samples using the auto quantify method, quantitative analysis of environmental samples using the emission-transmission method and quantitative analysis of air particulate matter collected on filters. Telephone wire materials sold in junkshops (alleged to have been pilfered from installed telephone lines of a major telecommunications company in the country) and materials being assessed in relation to patent claims are other examples of samples submitted for analytical services. As mentioned, a useful feature of the E5 system is the use of the auto-quantify (AQ) method. Calibration lines used for this type of application are obtained using the fundamental parameter (FP) model. For AQ applications, accurate results are obtained for samples prepared as fused glass beads in which the whole matrix is known. However, only qualitative or semi quantitative analysis can be applied for other types of solid samples. The AQ method was adapted for the multi-elemental analysis of air particulates using the MicroMatter standards to set up the AQ calibration and using an assigned compound for making up to 100% composition. A new application of E5 system was analysis of water. In this case 30 {mu}L of water samples (pre-concentrated) and multi-element standards were dried on a membrane filter and samples were analyzed by using the conventional calibration curves; for majority of the elements a good linear response for the standards was obtained.
AB - XRF analysis and activities of the Analytical Measurements Research (AMR) Group (see Fig.1) of the Philippine Nuclear Research Institute (PNRI) focus on both research and analytical services. Air pollution research, in particular source apportionment studies, requires multi-elemental data for a substantial number of samples. In the PNRI, energy-dispersive X-ray fluorescence (EDXRF) has been used as an effective tool for providing such multi-elemental data. With the latest acquisition of the Panalytical Epsilon 5 (E5) EDXRF system, the process of quantification has become easier and faster with the auto-quantify method. Other research involvements of the group are in the analysis of samples in relation to mineral explorations and the elemental characterization of water in support for isotope hydrology research. The AMR group, as part of its function to provide analytical services, offers qualitative or semi quantitative analysis of solid samples using the auto quantify method, quantitative analysis of environmental samples using the emission-transmission method and quantitative analysis of air particulate matter collected on filters. Telephone wire materials sold in junkshops (alleged to have been pilfered from installed telephone lines of a major telecommunications company in the country) and materials being assessed in relation to patent claims are other examples of samples submitted for analytical services. As mentioned, a useful feature of the E5 system is the use of the auto-quantify (AQ) method. Calibration lines used for this type of application are obtained using the fundamental parameter (FP) model. For AQ applications, accurate results are obtained for samples prepared as fused glass beads in which the whole matrix is known. However, only qualitative or semi quantitative analysis can be applied for other types of solid samples. The AQ method was adapted for the multi-elemental analysis of air particulates using the MicroMatter standards to set up the AQ calibration and using an assigned compound for making up to 100% composition. A new application of E5 system was analysis of water. In this case 30 {mu}L of water samples (pre-concentrated) and multi-element standards were dried on a membrane filter and samples were analyzed by using the conventional calibration curves; for majority of the elements a good linear response for the standards was obtained.
M3 - Technical Report
BT - X-ray fluorescence in Member States: Philippines. XRF activities at Analytical Measurements Research Group, Philippine Nuclear Research Institute
ER -