Rapid and simple determination of heavy metals in foods [cadmium, lead and copper in brown rice and other foods]: Application of wet digestion and iodide-MIBK [methyl iso-butyl ketone] extraction
Wet digestion was done in a Soxhlet flask equipped with a digestion cap. Sulfuric acid 1ml, 60% perchloric acid 3ml and nitric acid were added and the mixture was heated. After the digestion, water was added to 25ml. Sulfuric acid 2ml and 50w/v% potassium iodide were then added and cadmium, lead and...
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| Veröffentlicht in: | Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 1983/06/05, Vol.24(3), pp.295-300_1 |
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| container_title | Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) |
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| creator | Saito, I Kawamura, N Arakawa, S Oshima, H Uno, K. (Aichi-ken. Inst. of Public Health, Nagoya (Japan)) |
| description | Wet digestion was done in a Soxhlet flask equipped with a digestion cap. Sulfuric acid 1ml, 60% perchloric acid 3ml and nitric acid were added and the mixture was heated. After the digestion, water was added to 25ml. Sulfuric acid 2ml and 50w/v% potassium iodide were then added and cadmium, lead and copper were extracted with MIBK 5ml (potassium iodide-MIBK extraction). When fish oil and brown rice were digested by this method, the time required for digestion was only a quarter to half that of the usual method, and the contamination from reagents and glassware was reduced. Analytical accuracy and precision for cadmium and copper in brown rice were good. The results of potassium iodide-MIBK extraction and DDTC-MIBK extraction of cadmium in brown rice showed a good correlation. This method is rapid and simple, and should be suitable for routine analysis of cadmium in brown rice and of other metals in foods. |
| doi_str_mv | 10.3358/shokueishi.24.295 |
| format | Article |
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(Aichi-ken. Inst. of Public Health, Nagoya (Japan))</creator><creatorcontrib>Saito, I ; Kawamura, N ; Arakawa, S ; Oshima, H ; Uno, K. (Aichi-ken. Inst. of Public Health, Nagoya (Japan))</creatorcontrib><description>Wet digestion was done in a Soxhlet flask equipped with a digestion cap. Sulfuric acid 1ml, 60% perchloric acid 3ml and nitric acid were added and the mixture was heated. After the digestion, water was added to 25ml. Sulfuric acid 2ml and 50w/v% potassium iodide were then added and cadmium, lead and copper were extracted with MIBK 5ml (potassium iodide-MIBK extraction). When fish oil and brown rice were digested by this method, the time required for digestion was only a quarter to half that of the usual method, and the contamination from reagents and glassware was reduced. Analytical accuracy and precision for cadmium and copper in brown rice were good. The results of potassium iodide-MIBK extraction and DDTC-MIBK extraction of cadmium in brown rice showed a good correlation. This method is rapid and simple, and should be suitable for routine analysis of cadmium in brown rice and of other metals in foods.</description><identifier>ISSN: 0015-6426</identifier><identifier>EISSN: 1882-1006</identifier><identifier>DOI: 10.3358/shokueishi.24.295</identifier><language>eng ; jpn</language><publisher>Japanese Society for Food Hygiene and Safety</publisher><subject>ALIMENTOS ; ANALISIS QUIMICO ; ANALYSE CHIMIQUE ; ARROZ ; atomic absorption spectrophotometry ; brown rice ; cadmium ; CHEMICAL ANALYSIS ; copper ; ESPECTROMETRIA ; food contamination ; FOODS ; HEAVY METALS ; iodide-MIBK extraction ; lead ; METAL LOURD ; METALES PESADOS ; PRODUIT ALIMENTAIRE ; RICE ; RIZ ; SPECTROMETRIE ; SPECTROMETRY ; wet-digestion method</subject><ispartof>Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi), 1983/06/05, Vol.24(3), pp.295-300_1</ispartof><rights>The Food Hygienic Society of Japan</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3685-dc3e3222563d624c16ab25ddca6fc89eac7a5347deacfab735362e262b04ada53</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Saito, I</creatorcontrib><creatorcontrib>Kawamura, N</creatorcontrib><creatorcontrib>Arakawa, S</creatorcontrib><creatorcontrib>Oshima, H</creatorcontrib><creatorcontrib>Uno, K. (Aichi-ken. Inst. of Public Health, Nagoya (Japan))</creatorcontrib><title>Rapid and simple determination of heavy metals in foods [cadmium, lead and copper in brown rice and other foods]: Application of wet digestion and iodide-MIBK [methyl iso-butyl ketone] extraction</title><title>Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)</title><addtitle>Food Hyg. Saf. Sci.</addtitle><description>Wet digestion was done in a Soxhlet flask equipped with a digestion cap. Sulfuric acid 1ml, 60% perchloric acid 3ml and nitric acid were added and the mixture was heated. After the digestion, water was added to 25ml. Sulfuric acid 2ml and 50w/v% potassium iodide were then added and cadmium, lead and copper were extracted with MIBK 5ml (potassium iodide-MIBK extraction). When fish oil and brown rice were digested by this method, the time required for digestion was only a quarter to half that of the usual method, and the contamination from reagents and glassware was reduced. Analytical accuracy and precision for cadmium and copper in brown rice were good. The results of potassium iodide-MIBK extraction and DDTC-MIBK extraction of cadmium in brown rice showed a good correlation. This method is rapid and simple, and should be suitable for routine analysis of cadmium in brown rice and of other metals in foods.</description><subject>ALIMENTOS</subject><subject>ANALISIS QUIMICO</subject><subject>ANALYSE CHIMIQUE</subject><subject>ARROZ</subject><subject>atomic absorption spectrophotometry</subject><subject>brown rice</subject><subject>cadmium</subject><subject>CHEMICAL ANALYSIS</subject><subject>copper</subject><subject>ESPECTROMETRIA</subject><subject>food contamination</subject><subject>FOODS</subject><subject>HEAVY METALS</subject><subject>iodide-MIBK extraction</subject><subject>lead</subject><subject>METAL LOURD</subject><subject>METALES PESADOS</subject><subject>PRODUIT ALIMENTAIRE</subject><subject>RICE</subject><subject>RIZ</subject><subject>SPECTROMETRIE</subject><subject>SPECTROMETRY</subject><subject>wet-digestion method</subject><issn>0015-6426</issn><issn>1882-1006</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1983</creationdate><recordtype>article</recordtype><recordid>eNp9kc9u1DAQxiNEJValDwAX_ABk8Z_ESbiVqkBLqyKgp6qKHHuyGZrEke2l7PPxYji71VL1wMUezXy_b2Y0SfKK0aUQefnOd_ZuDeg7XPJsyav8WbJgZclTRql8niwoZXkqMy5fJEfeY0MprQouOF8kf76pCQ1RoyEeh6kHYiCAG3BUAe1IbEs6UL82ZICgek9wJK21xpMbrcyA6-Et6UHtDLSdJnCzpHH2fiQONWwLNnQxv-Vu35PjaepR7-3vIRCDK_DbxCxHa9BAenn24Qu5iX27TU_Q27RZhxjdQbAj3BL4HZzSM_QyOWjjbHD08B8m1x9Pf5x8Ti-uPp2dHF-kWsgyT40WEHfmuRRG8kwzqRqeG6OVbHVZgdKFykVWmBi1qilELiQHLnlDM2Vi6TBhO1_trPcO2npyOCi3qRmt50PU_w5R86yOh4hM8YTRGLa7x-mx_y95viN_-qBWsO-lXEDdwyOCVZLOlHh4qnwv0p1yNYzR7M3OrFW2ViuHvr7-zikTlDNZlUxExeunivOvZUYzKqX4C_-Ow5o</recordid><startdate>1983</startdate><enddate>1983</enddate><creator>Saito, I</creator><creator>Kawamura, N</creator><creator>Arakawa, S</creator><creator>Oshima, H</creator><creator>Uno, K. 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Inst. of Public Health, Nagoya (Japan))</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3685-dc3e3222563d624c16ab25ddca6fc89eac7a5347deacfab735362e262b04ada53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1983</creationdate><topic>ALIMENTOS</topic><topic>ANALISIS QUIMICO</topic><topic>ANALYSE CHIMIQUE</topic><topic>ARROZ</topic><topic>atomic absorption spectrophotometry</topic><topic>brown rice</topic><topic>cadmium</topic><topic>CHEMICAL ANALYSIS</topic><topic>copper</topic><topic>ESPECTROMETRIA</topic><topic>food contamination</topic><topic>FOODS</topic><topic>HEAVY METALS</topic><topic>iodide-MIBK extraction</topic><topic>lead</topic><topic>METAL LOURD</topic><topic>METALES PESADOS</topic><topic>PRODUIT ALIMENTAIRE</topic><topic>RICE</topic><topic>RIZ</topic><topic>SPECTROMETRIE</topic><topic>SPECTROMETRY</topic><topic>wet-digestion method</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saito, I</creatorcontrib><creatorcontrib>Kawamura, N</creatorcontrib><creatorcontrib>Arakawa, S</creatorcontrib><creatorcontrib>Oshima, H</creatorcontrib><creatorcontrib>Uno, K. (Aichi-ken. Inst. of Public Health, Nagoya (Japan))</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><jtitle>Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saito, I</au><au>Kawamura, N</au><au>Arakawa, S</au><au>Oshima, H</au><au>Uno, K. (Aichi-ken. Inst. of Public Health, Nagoya (Japan))</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rapid and simple determination of heavy metals in foods [cadmium, lead and copper in brown rice and other foods]: Application of wet digestion and iodide-MIBK [methyl iso-butyl ketone] extraction</atitle><jtitle>Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)</jtitle><addtitle>Food Hyg. Saf. Sci.</addtitle><date>1983</date><risdate>1983</risdate><volume>24</volume><issue>3</issue><spage>295</spage><epage>300</epage><pages>295-300</pages><artnum>295</artnum><issn>0015-6426</issn><eissn>1882-1006</eissn><abstract>Wet digestion was done in a Soxhlet flask equipped with a digestion cap. Sulfuric acid 1ml, 60% perchloric acid 3ml and nitric acid were added and the mixture was heated. After the digestion, water was added to 25ml. Sulfuric acid 2ml and 50w/v% potassium iodide were then added and cadmium, lead and copper were extracted with MIBK 5ml (potassium iodide-MIBK extraction). When fish oil and brown rice were digested by this method, the time required for digestion was only a quarter to half that of the usual method, and the contamination from reagents and glassware was reduced. Analytical accuracy and precision for cadmium and copper in brown rice were good. The results of potassium iodide-MIBK extraction and DDTC-MIBK extraction of cadmium in brown rice showed a good correlation. This method is rapid and simple, and should be suitable for routine analysis of cadmium in brown rice and of other metals in foods.</abstract><pub>Japanese Society for Food Hygiene and Safety</pub><doi>10.3358/shokueishi.24.295</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0015-6426 |
| ispartof | Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi), 1983/06/05, Vol.24(3), pp.295-300_1 |
| issn | 0015-6426 1882-1006 |
| language | eng ; jpn |
| recordid | cdi_crossref_primary_10_3358_shokueishi_24_295 |
| source | EZB-FREE-00999 freely available EZB journals |
| subjects | ALIMENTOS ANALISIS QUIMICO ANALYSE CHIMIQUE ARROZ atomic absorption spectrophotometry brown rice cadmium CHEMICAL ANALYSIS copper ESPECTROMETRIA food contamination FOODS HEAVY METALS iodide-MIBK extraction lead METAL LOURD METALES PESADOS PRODUIT ALIMENTAIRE RICE RIZ SPECTROMETRIE SPECTROMETRY wet-digestion method |
| title | Rapid and simple determination of heavy metals in foods [cadmium, lead and copper in brown rice and other foods]: Application of wet digestion and iodide-MIBK [methyl iso-butyl ketone] extraction |
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