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中華人民共和國農業行業標準(有機肥料全鉀的測定)

1 ZHUTINEIRONGYUSHIYONGFANWEI

BENBIAOZHUNGUIDINGLECEDINGYOUJIFEILIAOQUANJIADELIUSUAN-GUOYANGHUAQINGXIAOZHU、HUOYANGUANGDUFACEDING。

BENBIAOZHUNSHIYONGYUFEINIZHIYOUJIFEILIAOZHONGQUANJIAHANLIANGCEDING。

2  YINYONGBIAOZHUN

GB/T 6682  FENXISHIYANSHIYONGSHUIGUIGEJISHIYANFANGFA

3  FANGFAYUANLI

YOUJIFEILIAOSHIYANGJINGLIUSUAN-GUOYANGHUAQINGXIAOZHU,XISHIHOUYONGHUOYANGUANGDUFACEDING。ZAIYIDINGNONGDUFANWEINEI,RONGYEZHONGJIANONGDUYUFAGUANGQIANGDUCHENGZHENGBILIGUANXI。

4  SHIJI

SUOYONGSHIJICHUZHUMINGZHEWAI,JUNWEIFENXICHUN。FENXIYONGSHUIYINGFUHEGB/T 6682DI5ZHANGZHONGSANJISHUIDEGUIGE。

4.1  LIUSUAN(GB/T 625)。

4.2  GUOYANGHUAQING(GB/T 6684)。

4.3  LINBIAOZHUNZHUBEIRONGYE:1mg/mL

    CHENGQU1.907gJING110℃HONGGAN2hDELVHUAJIA(GB 646),YONGSHUIRONGJIEHOUDINGRONGZHI1L。GAIRONGYE1mLHANJIA(K)1mg,ZHUYUSULIAOPINGZHONG。

4.4  JIABIAOZHUNRONGYE:100μg/mL

    XIQU10.0mLJIA(K)BIAOZHUNZHUBEIYE(4.3)YU100mLRONGLIANGPINGZHONG,JIASHUIDINGRONG,CIRONGYE1mLHANJIA(K)100μg。

5  YIQI、SHEBEI

    TONGCHANGSHIYANSHIYONGYIQIHE

5.1  分析天平;感量為0.1mg。

5.2  KEDIAODIANLU:1000W。

5.3  火焰光度計

5.4  KAISHIPING:50HUO100mL。

5.5  RONGLIANGPING:50,100,1000mL。

5.6  YIYEGUAN:5,10mL。

5.7  WANJINGXIAOLOUDOU:Φ2cm。

5.8  JUSAISANJIAOPING:150mL。

6  SHIYANGDEZHIBEI

QUFENGGANDESHIYANSHIYANGPINCHONGFENHUNYUNHOU,ANSIFENFASUOZHIYUE100g,FENSUI,QUANBUTONGGUO1mmKONGJINGSHAI,ZHUANGRUYANGPINPINGZHONG,BEIYONG。

7  FENXIBUZOU

7.1  SHIYANGRONGYEZHIBEI

CHENGQUSHIYANG0.5g(NIAOYEHUOFENZHIDENGYETIFEILIAOZHIJIECHENGQUYETIZHILIANG1~2g),JINGQUEZHI0.001g,XIAOXINFANGRUKAISHISHAOPING(5.4)DIBU,YONGSHAOLIANGSHUICHONGXIZHANFUZAIPINGBISHANGDESHIYANG,JIA5.0mLLIUSUAN(4.1)HE1.5mLGUOYANGHUAQING(4.2),XIAOXINYAOYUN,PINGKOUFANGYIWANJINGXIAOLOUDOU(5,7),FANGZHIGUOYE。

ZAIKEDIAODIANLU(5.2)SHANGJIARE,HUANMANSHENGWENZHILIUSUANMAOYAN,QUXIA,SHAOLENGHOUJIA15DIGUOYANGHUAQING(4.3),QINGQINGYAODONGKAISHISHAOPING,JIAREYUE10min,QUXIA,SHAOLENGHOUFENCIZAIJIA5~10DIGUOYANGHUAQING(4.2)BINGFENCIXIAOZHU,ZHIZHIRONGYECHENGWUSEHUODANHUANGSEQINGYEHOU,JIXUJIARE10min,CHUJINSHENGYUDEGUOYANGHUAQING。QUXIASHAOLENG,XIAOXINJIASHUIZHI20~30mL,JIAREZHIFEI。QUXIALENGQUE,YONGSHAOLIANGSHUICHONGXIWANJINGXIAOLOUDOU,XIYESHOURUYUANKAISHISHAOPINGZHONG。JIANGXIAOZHUYEYIRU100mLRONGLIANGPINGZHONG,JIASHUIDINGRONG,JINGZHICHENGQINGHUOYONGWULINLVZHIYUGUOLVDAOJUSAISANJIAOPINGZHONG(5.8)ZHONG,BEIYONG。

TONGYISHIYANZUOLIANGGEPINGXINGCEDING。

7.2  KONGBAISHIYAN

CHUBUJIASHIYANGWAI,YINGYONGDESHIJIHECAOZUOBUZOUTONG7.1。

7.3  XIAOZHUNQUXIANHUIZHI

    吸取鉀標準溶液(4.4)0,2.50,5.00,7.50,10.00mL分別置于5個50mL容量瓶中,加入與吸取試樣溶液等體積的空白溶液,用水定容,此溶液為1mL含鉀(K)0,5.00,10.00,15.00,20.00μg的標準溶液系列。在火焰光度計上,以空白溶液調節儀器零點,以標準溶液系列中最高濃度的標準溶液調節滿度至80分度處。再依次由低濃度至高濃度測量其他標準溶液,記錄儀器示值。根據鉀濃度和儀器示值繪制校準曲線或求出直線回歸方程。

7.4  CEDING

    吸取5.00mL試樣溶液(7.1)于50mL容量瓶中,加水室容。與標準溶液系列同條件在火焰光度計上測定,記錄儀器示值。每測量5個樣品后須用鉀標準溶液校正儀器。

8  FENXIJIEGUODEBIAOSHU

QUANJIA(K)HANLIANGYIg/kgBIAOSHI,ANXIASHIJISUAN:

全鉀(K)

SHIZHONG:c-YOUXIAOZHUNQUXIANCHADEHUOYOUHUIGUIFANGCHENGQIUDEXIANSELINNONGDU,μg/mL;

      V-XIANSETIJI,50mL;

D-FENQUBEISHU,DINGRONGTIJI/FENQUTIJI,100/50;

m-CHENGQUSHIYANGZHILIANG,g;

    10-3-將μg/g換算為g /kg的因數。

SUODEJIEGUOYINGBIAOSHIZHIERWEIXIAOSHU。

9  YUNXUCHA

9.1  LIANGPINGXINGCEDINGJIEGUODESUANSHUPINGJUNZHIZUOWEICEDINGJIEGUO。

9.2  LIANGPINGXINGCEDINGJIEGUOYUNXUJUEDUICHAYINGFUHEXIABIAOYAOQIU:

K,g/kg

YUNXUCHA,g/kg

<5.0

<0.5

5.1~10.0

<0.7

10.1~15.0

<0.9

>15.1

<1.2

上一篇:GB/T 2448—91 尿素粒度的測定 篩分法    下一篇:中華人民共和國農業部公告第1137號(乳用動物健康標準)
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