海南4+1

工业用冰乙酸(六)
来源/作者:中国标准物质网  日期:2021-02-05

4.8 SHUIFENDECEDING

ANGB/T6283-2008GUIDINGJINXINGCEDING。

YONGZHUSHEQICHENGQUSHIYANGYUE3.5g,JINGQUEZHI0.001g.CHENGYANGSHI,ZHUSHEQIZHENTOUYINGYONGXIANGJIAODIANMIFENG。

QULIANGCIPINGXINGCEDINGJIEGUODESUANSHUPINGJUNZHIWEICEDINGJIEGUO,LIANGCIPINGXINGCEDINGJIEGUOZHICHABUDAYU0.01%。

4.9 ZHENGFACANZHADECEDING

ANGB/T6324.2-2004GUIDINGJINXINGCEDING。

QULIANGCIPINGXINGCEDINGJIEGUODESUANSHUPINGJUNZHIWEICEDINGJIEGUO,LIANGCIPINGXINGCEDINGJIEGUOZHICHABUDAYU0.001%。

4.10 TIEHANLIANGDECEDING

4.10.1 1.10-FEILUOLINFENGUANGGUANGDUFA(ZHONGCAIFA)

ANGB/T3049-2006DEGUIDINGJINXINGCEDING。

4.10.1.1 FENXIBUZHOU

移取100mL样品置于瓷或玻璃蒸发皿中,在沸水浴上蒸干,残渣用1mL盐酸溶液(1+1)溶解。

4.10.1.2 JIEGUOJISUAN

铁的质量分数w5,数值以%表示,按式(5)计算:

SHIZHONG:

m—CONGBIAOZHUNQUXIANCHADETIEDEZHILIANGDESHUZHI,DANWEIWEIWEIKE(pg);

V—SHIYANGDETIJIDESHUZHI,DANWEIWEIHAOSHENG(mL);

p—试样20℃时密度的数值,单位为克每立方厘米(g/cm3)。

QULIANGCIPINGXINGCEDINGJIEGUODESUANSHUPINGJUNZHIWEICEDINGJIEGUO,LIANGCIPINGXINGCEDINGJIEGUOZHICHABUDAYU0.00002%。

4.10.2 YUANZIXISHOUGUANGPUFA

4.10.2.1 FANGFATIYAO

SHIYANGJINGZHENGFACHULIHOU,PEICHENGSHIDANGNONGDUDERONGYE,ZAIKONGQI-YIGUIHUOYANZHONGPENWU,YITIEKONGXINYINJIDENGWEIGUANGYUAN,ZAI248.3nmBOZHANGXIACEDINGSHIYANGXIGUANGDU。GENJUZAIXIANGTONGTIAOJIANXIAQUEDINGDETIEGONGZUOQUXIAN,JISUANSHIYANGZHONGTIEDEHANLIANG。

4.10.2.2 SHIJI

4.10.2.2.1 SHUI:GB/T6682-2008GUIDINGDEERJISHUI;

4.10.2.2.2 盐酸溶液:1+1,取优级纯盐酸进行配制;

4.10.2.2.3 TIE(Fe)BIAOZHUNRONGYE,0.01mg/mL:XIQUTIE(Fe)BIAOZHUNRONGYE(0.1mg/mL),YONGSHUIXISHI10BEI。SHIYONGSHIPEIZHI;

4.10.2.2.4 乙炔:体积分数不小于99.5%。

4.10.2.3 YIQI

YUANZIXISHOUGUANGPUYI(FUTIEKONGXINYINJIDENG)

a)TEZHENGNONGDU:ZAIYUCEDINGSHIYANGRONGYEDEJITIXIANGYIZHIDERONGYEZHONG,TIEDETEZHENGNONGDUYINGBUDAYU0.044ug/mL。

b)YIQIJINGMIDU:ZAIJIDINGSHIYANTIAOJIANXIA,DUIXIGUANGDUZAI0.1~0.3FANWEINEIDEBIAOYANG,JINXING7CIZHONGFUCEDING,JIEGUODEXIANGDUIBIAOZHUNPIANCHABUDAYU1.5%。

4.10.2.4 FENXIBUZHOU

4.10.2.4.1 SHIYANGDEZHIBEI

YIQU100mLSHIYANGYU150mLYUANDICIHUOBOLIZHENGFAMINZHONG,ZAIFEISHUIYUSHANGZHENGGAN,CANZHAYONG2mLYANSUANRONGYERONGJIE,YIRU25mLRONGLIANGPINGZHONG,XISHIZHIKEDU。

4.10.2.4.2 GONGZUOQUXIANDEHUIZHI

a)XIAOZHUNRONGYEDEZHIBEI

FENBIEYIQU0mL、2.0mL、4.0mL、6.0mL、8.0mL、10.0mLTIEBIAORONGYE,FENBIEZHIYU6GE25mLRONGLIANGPINGZHONG,JIA2mLYANSUANRONGYE,XISHIZHIKEDU。

b)XIAOZHUNRONGYEXIGUANGDUDECEDING

ZAIJIDINGDEYIQISHIYANTIAOJIANXIA,DAIYIQIWENDING,YONGSHUIDIAOLINGHOU,FENBIECEDINGXIAOZHUNRONGYEDEXIGUANGDU。

c)GONGZUOQUXIANDEHUIZHI

以每一标准溶液的吸光度减去试剂空白溶液的吸光度为纵坐标:对应铁校准溶液浓度为横坐标绘制工作曲线。
如使用数据处理系统,工作曲线可在试样测定时进行。

4.10.2.4.3 SHIYANGDECEDING

ANZHAOCEDINGBIAOZHUNRONGYEXIGUANGDUDEFANGFACEDINGSHIYANGDEXIGUANGDU。CONGGONGZUOCHUXIANZHONGCHADENONGDUZHI(HUOZHIJIEDUQUNONGDUZHI)。

4.10.2.5 JIEGUOJISUAN

铁的质量分数w6:数值以%表示,按式(6)计算:

SHIZHONG:

c—CONGGONGZUOQUXIANZHONGCHADEDENONGDU,DANWEIWEIWEIKEMEIHAOSHENG(pg/mL);

V1—测定时试样溶液休积的数值,单位为毫升(mL);

V—SHIYANGDETIJIDESHUZHI,DANWEIWEIHAOSHENG(mL);

p—SHIYANG20℃SHIMIDUDESHUZHI,DANWEIWEIKEMEILIFANGLIMI(g/cm)。

QUWANGCIPINGXINGCEDINGJIEGUODESUANSHUPINGJUNZHIWEICEDINGJIEGUO,LIANGCIPINGXINGCEDINGJIEGUOZHICHABUDAYU0.00001%。

 

 

WENZHANGLAIYUAN:《HUAXUEGONGYEBIAOZHUNHUIBIANYOUJIHUAGONGFANGFA》

BANQUANYUMIANZESHENGMING:ZHUANZAIMUDEZAIYUCHUANDIGENGDUOXINXI。

RUQITAMEITI、WANGZHANHUOGERENCONGBENWANGXIAZAISHIYONG,BIXUBAOLIUBENWANGZHUMINGDE"GAOJIANLAIYUAN",BINGZIFUBANQUANDENGFALVZEREN。

RUSHEJIZUOPINNEIRONG、BANQUANDENGWENTI,QINGZAIZUOPINFABIAOZHIRIQILIANGZHOUNEIYUBENWANGLIANXI,FOUZESHIWEIFANGQIXIANGGUANQUANLI。

【关键词】盐酸 乙炔 国家标准物质 药品对照品 进口标准品 化学试剂 普天同创