A pilot study to measure levels of selected elements in Thai foods by instrumental neutron activation analysis

Laoharojanaphand, S.; Busamongkol, Arporn; Permnamtip, V.; Judprasong, Kunchit; Chatt, A.

doi:10.1007/s10967-012-1884-x

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…Therefore, the levels of these elements in rice should be investigated. Several methods have been widely used for the determination of elemental concentrations in rice samples including graphite furnace atomic absorption spectrometry (GFAAS) [6], x-ray fluorescence (XRF) [7], instrumental neutron activation analysis (INAA) [8][9], inductively coupled plasma optical emission spectrometry (ICP-OES) [8,10] and inductively coupled plasma mass spectrometry (ICP-MS) [5,11]. The Cs and Sr contents in rice samples analyzed by various techniques have been reported.…”

Section: Introductionmentioning

confidence: 99%

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

Srinuttrakul¹,

Yoshida

2017

J. Phys.: Conf. Ser.

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Abstract. For long-term radiation dose assessment models, food ingestion is one of the major exposure pathways to human. In general, the stable isotopes can serve as analogues of radioisotopes. In this study, rice samples were collected from 30 paddy fields in Si Sa Ket, Yasothon and Roi Et in the northeast of Thailand in November 2014. The concentrations of stable cesium (Cs-133) and strontium (Sr-88) in polished rice were determined by inductively coupled plasma mass spectrometry (ICP-MS). The standard reference material of rice flour (NIST 1568a) with spiked Cs and Sr was used to validate the analytical method. The concentration of Cs in polished rice from Si Sa Ket, Yasothon and Roi Et was 0.158  0.167 mg kg -1 , 0.090  0.117 mg kg -1 and 0.054  0.031 mg kg -1 , respectively. The concentration of Sr in polished rice from Si Sa Ket, Yasothon and Roi Et was 0.351  0.108 mg kg -1 , 0.364  0.215 mg kg -1 and 0.287  0.102 mg kg -1 , respectively. Comparison of the results with Japanese data before the Fukushima Di-ichi nuclear power plant accident showed that the concentrations of both Cs and Sr for Thai rice were higher than those for Japanese rice.

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Section: Introductionmentioning

confidence: 99%

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

Srinuttrakul¹,

Yoshida

2017

J. Phys.: Conf. Ser.

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“…Tabel 1. Parameter nuklir dari semua unsur(11,16,17).Tabel 4. Hasil uji profisiensi cuplikan dengan kode ISE PER 2015.1 samp 2.…”

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Evaluasi Uji Profisiensi Wepal 2015.1 Pada Cuplikan Tanah

Syahfitri

Kurniawati

Adventini

et al. 2018

Sains dan Teknologi Nuklir Indonesia

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EVALUASI UJI PROFISIENSI WEPAL 2015.1 PADA CUPLIKAN TANAH. Pengendalian kualitas prosedur analitik sangat penting untuk menghasilkan data analisis yang andal. Partisipasi dalam program uji profisiensi yang diselenggarakan oleh WEPAL (Wageningen Evaluating Programmes for Analytical Laboratories) 2015.1, merupakan salah satu proses penting untuk meningkatkan akurasi dan ketepatan teknik analisis yang digunakan di laboratorium serta dalam peningkatan pemanfaatan reaktor riset. Cuplikan ISE (International Soil Analytical Exchange) diiradiasi pada fasilitas rabbit system dan dianalisis menggunakan metode AAN (Analisis Aktivasi Neutron). Evaluasi kinerja metode dilakukan dengan uji akurasi dan Z-score. Unsur yang dilaporkan sebanyak 14 unsur yang meliputi Al, As, Ca, Co, Cr, Fe, K, Mg, Mn, Na, Sc, Ti, V dan Zn. Berdasarkan hasil analisis14 unsur yang dilaporkan, 57,1-78,6% memuaskan dengan |Z| ≤ 2; 7,14-21,4% dipertanyakan dengan 2<|Z|<3 dan 21,4-35,7% tidak memuaskan dengan |Z| ≥ 3. Pada hasil yang tidak memuaskan/outlier dilakukan tindakan perbaikan dan hasil analisis menunjukkan terdapat kesesuaian dengan nilai Z-score berkisar antara -2<Z<2. Secara umum, metode AAN baik untuk analisis multielemen matrik tanah dengan hasil analisis yang andal dan tingkat validitas yang baik.Kata kunci : uji profisiensi, AAN, tanah.

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Health impact assessment of arsenic and cadmium intake via rice consumption in Bangkok, Thailand

Hensawang

Chanpiwat

2017

Environ Monit Assess

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Consumption of contaminated food is a major route of exposure to toxic contaminants for humans. To protect against potential negative health effects from rice consumption, As and Cd concentrations in rice sold in Bangkok were determined, and non-carcinogenic and carcinogenic risk assessments were conducted. Four types of rice (n = 97), namely, white jasmine, white, glutinous, and brown jasmine, were collected. Samples were acid-digested and analyzed for total concentrations of As and Cd by ICP-MS. The average concentrations of As and Cd were 0.205 ± 0.008 and 0.019 ± 0.001 mg kg, respectively. Approximately 22.8, 62.5, and 57.1% of white, white jasmine, and brown jasmine rice, respectively, contained As concentrations exceeding the Codex inorganic As standards for polished and unpolished rice. Brown jasmine rice contained significantly higher As concentrations than the other types of rice. However, Cd concentrations in all rice samples were significantly lower than the Codex standard of 0.4 mg kg. Children are exposed to the highest amounts of both elements. Concerning As exposure through the consumption of different types of rice in the same age group, the consumption of brown jasmine rice caused approximately 1.7 to 2.3 times higher As exposure rates compared to the consumption of other types of rice. Non-carcinogenic risks (hazard quotient (HQ)) of As exposure from all types of rice were higher than the threshold limit of 1. HQ in children ranging from 2.1 to 4.9 was significantly higher than HQ in the other age groups. The cancer risks from As exposure were negligible in all groups.

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A pilot study to measure levels of selected elements in Thai foods by instrumental neutron activation analysis

Cited by 11 publications

References 9 publications

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

Determination of stable cesium and strontium in rice samples by inductively coupled plasma mass spectrometry

Evaluasi Uji Profisiensi Wepal 2015.1 Pada Cuplikan Tanah

Health impact assessment of arsenic and cadmium intake via rice consumption in Bangkok, Thailand

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