AOAC ERP Gluten Assays - March 2019

, 00(5 + $$6 / $87(5%$&+ - 2851$/ 2) $2$& , 17(51$7,21$/ 9 2/

1 2

F 3HUR[LGDVH ODEHOHG DQWLERG\ ²2QH YLDO

P/ [

) 3UHSDUDWLRQ RI 7HVW 6DPSOHV

FRQFHQWUDWHG G *OLDGLQ UHDG\ WR XVH VWDQGDUGV DQWLJHQ ² 6L[ YLDOV P/ HDFK UHDG\ WR XVH 3UHSDUHG E\ 6LJPD JOLDGLQ RU RZQ SUHSDUDWLRQ GLVVROYHG LQ HWKDQRO DW D FRQFHQWUDWLRQ RI PJ P/ 7KH VROXWLRQ LV IXUWKHU GLOXWHG LQ P0 3%6 7ZHHQ VRGLXP FKORULGH 7ZHHQ FRQWDLQLQJ ¿VK JHODWLQ 6LJPD WR DQG QJ P/ JOLDGLQ FDOLEUDWHG WR WKH :RUNLQJ *URXS RQ 3URODPLQ $QDO\VLV DQG 7R[LFLW\ :*3$7 JOLDGLQ KLJKO\ SXUL¿HG JOLDGLQ IURP GLIIHUHQW (XURSHDQ ZKHDW YDULHWLHV H 6XEVWUDWH ²2QH YLDO P/ XUHD SHUR[LGH I &KURPRJHQ ²2QH YLDO P/ WHWUDPHWK\OEHQ]LGLQH LQ PHWKDQRO &DQ EH DGGHG HLWKHU VHSDUDWHO\ RU PL[HG ZLWK H EHIRUH SLSHWWLQJ J 6WRS VROXWLRQ ²2QH YLDO P/ 1 + 62 K 6DPSOH GLOXWLRQ EXIIHU P/ [ FRQFHQWUDWH ² &RQWDLQV D ¿QDO FRQFHQWUDWLRQ RI P0 3%6 7ZHHQ VRGLXP FKORULGH 7ZHHQ ZLWK ¿VK JHODWLQ 6LJPD DQG .DWKRQ DV SUHVHUYDWLYH L &RFNWDLO VROXWLRQ ² 2QH YLDO P/ 5HFRPPHQGHG EXW QRW SURYLGHG ZLWK WKH WHVW NLW D 6NLP PLON SRZGHU IRRG TXDOLW\ E 7KUHH FRQWURO VDPSOHV SRZGHU RQH QRQJOLDGLQ FRQWDLQLQJ VDPSOH ULFH ÀRXU DQG WZR SURODPLQH FRQWDPLQDWHG PDL]H VDPSOHV $ DQG % FRQFHQWUDWLRQ JLYHQ E\ D FHUWL¿FDWH ZKLFK FDQ EH H[WUDFWHG ZLWK HWKDQRO DQG GLOXWHG IXUWKHU ZLWK WKH VDPSOH GLOXWLRQ EXIIHU WR FRQWURO WKH WHVW IURP UXQ WR UXQ 6WRUH WKH NLW DW ± ƒ& ± ƒ) /HW DOO NLW FRPSRQHQWV FRPH WR ± ƒ& ± ƒ) EHIRUH XVH 5HWXUQ DQ\ XQXVHG PLFURZHOOV WR WKHLU RULJLQDO IRLO EDJ UHVHDO WKHP WRJHWKHU ZLWK WKH GHVLFFDQW SURYLGHG DQG VWRUH DW ± ƒ& ± ƒ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

:HLJK J VDPSOH DQG JULQG WR D SRZGHU DV ¿QH DV SRVVLEOH WR REWDLQ PD[LPDO VXUIDFH :HLJK J RI WKH VROLG JURXQG VDPSOH RU XVH P/ RI D OLTXLG VDPSOH LQ D P/ JODVV YLDO DQG DGG P/ FRFNWDLO &ORVH WKH YLDO DQG PL[ LW ZHOO DYRLG FURVV FRQWDPLQDWLRQ ,I WDQQLQ DQG SRO\SKHQRO FRQWDLQLQJ VDPSOHV H J FKRFRODWH FKHVWQXW RU EXFNZKHDW DUH SUHSDUHG DGG DQ DGGLWLRQDO J VNLP PLON SRZGHU IRRG TXDOLW\ WR WKH VDPSOH FRFNWDLO VROXWLRQ VHH SURGXFW OHDÀHW $SSHQGL[ ,QFXEDWH IRU PLQ DW ƒ& ƒ) LQ D ZDWHU EDWK /HW WKH VDPSOH FRRO GRZQ WKHQ PL[ LW ZLWK P/ HWKDQRO &ORVH WKH YLDO DQG VKDNH IRU K XSVLGH GRZQ RU E\ D URWDWRU DW URRP WHPSHUDWXUH ± ƒ& ± ƒ) &HQWULIXJH PLQ DW î J DW URRP WHPSHUDWXUH ± ƒ& ± ƒ) 5HPRYH WKH VXSHUQDWDQW H[WUDFW LQ D VFUHZ WRS YLDO DQG NHHS IRU WHVWLQJ 'LOXWH WKH VDPSOH DW OHDVW P/ ZLWK WKH SUHSDUHG VDPSOH GLOXWLRQ EXIIHU GHSHQGLQJ RQ WKH H[SHFWHG SURODPLQ FRQWHQW RI WKH VDPSOH 'LOXWH VHULDOO\ IURP WKH ¿UVW GLOXWLRQ LI QHFHVVDU\ PL[LQJ WKRURXJKO\ HDFK WLPH EHIRUH GLOXWLQJ IXUWKHU 8VH —/ SHU ZHOO LQ WKH DVVD\ D 6DPSOH GLOXHQW LV SURYLGHG DV D FRQFHQWUDWH IROG 2QO\ WKH DPRXQW WKDW LV DFWXDOO\ QHHGHG VKRXOG EH GLOXWHG ZLWK GLVWLOOHG ZDWHU H J P/ FRQFHQWUDWH P/ GLVWLOOHG ZDWHU VXI¿FLHQW IRU WKH GLOXWLRQ RI VDPSOHV 0DNH VXUH WKDW WKH EXIIHU LV QRW FRQWDPLQDWHG ZLWK JOLDGLQ E $QWLERG\ HQ]\PH FRQMXJDWH ERWWOH ZLWK UHG FDS LV SURYLGHG DV D FRQFHQWUDWH IROG 6LQFH WKH GLOXWHG HQ]\PH FRQMXJDWH VROXWLRQ KDV D OLPLWHG VWDELOLW\ RQO\ WKH DPRXQW WKDW LV DFWXDOO\ QHHGHG VKRXOG EH GLOXWHG %HIRUH SLSHWWLQJ WKH FRQMXJDWH FRQFHQWUDWH VKRXOG EH VKDNHQ FDUHIXOO\ )RU UHFRQVWLWXWLRQ WKH FRQMXJDWH FRQFHQWUDWH LV GLOXWHG ZLWK GLVWLOOHG ZDWHU H J ȝ/ FRQFHQWUDWH P/ GLVWLOOHG ZDWHU VXI¿FLHQW IRU WZR PLFURWLWHU VWULSV 7DNH FDUH WKDW WKH ZDWHU LV QRW FRQWDPLQDWHG ZLWK JOLDGLQ F :DVKLQJ EXIIHU LV SURYLGHG DV D IROG FRQFHQWUDWH %HIRUH XVH WKH EXIIHU PXVW EH GLOXWHG ZLWK GLVWLOOHG ZDWHU L H P/ EXIIHU FRQFHQWUDWH P/ GLVWLOOHG ZDWHU 3ULRU WR GLOXWLRQ GLVVROYH DQ\ FU\VWDOV IRUPHG E\ LQFXEDWLQJ WKH EXIIHU LQ D ZDWHU EDWK DW ƒ& ƒ) 7KH GLOXWHG EXIIHU LV VWDEOH DW ± ƒ& ± ƒ) IRU ZHHNV %ULQJ DOO UHDJHQWV WR URRP WHPSHUDWXUH ± ƒ& ± ƒ) EHIRUH XVH 'R QRW DOORZ PLFURZHOOV WR GU\ EHWZHHQ ZRUNLQJ VWHSV ,QVHUW D VXI¿FLHQW QXPEHU RI ZHOOV LQWR WKH PLFURZHOO KROGHU IRU DOO VWDQGDUGV DQG VDPSOHV WR EH UXQ 5HFRUG VWDQGDUG DQG VDPSOH SRVLWLRQV $GG —/ RI HDFK VWDQGDUG VROXWLRQ RU SUHSDUHG VDPSOH WR VHSDUDWH ZHOOV PL[ V PDQXDOO\ DQG LQFXEDWH IRU PLQ DW URRP WHPSHUDWXUH ± ƒ& ± ƒ) 'XPS WKH OLTXLG RXW RI WKH ZHOOV WKHQ WDS WKH PLFURZHOO KROGHU XSVLGH GRZQ YLJRURXVO\ WKUHH WLPHV LQ D URZ DJDLQVW DEVRUEHQW SDSHU WR HQVXUH FRPSOHWH UHPRYDO RI OLTXLG IURP WKH ZHOOV )LOO DOO WKH ZHOOV ZLWK —/ GLOXWHG ZDVKLQJ EXIIHU DQG GXPS RXW WKH OLTXLG DJDLQ 5HSHDW WZR PRUH WLPHV $GG —/ RI WKH ¿QDOO\ GLOXWHG HQ]\PH ODEHOHG FRQMXJDWH * 3UHSDUDWLRQ RI &RPSRQHQWV 'HOLYHUHG ZLWK WKH .LW + 'HWHUPLQDWLRQ

Made with FlippingBook - professional solution for displaying marketing and sales documents online