南方彩票网

食品中盐的完整指南

在碗里的粉红盐有许多方法可以测量和分析食物中的盐。以下是我们为什么需要食物中的盐,它对我们的健康的影响以及用于测量它的不同方法的细分。向下滚动以阅读整篇文章,或单击下面的某个点跳转到该主题。

    1.  关于食物中的盐
    2. 钠对健康的影响
    3. 钠分析方法
      1. 方法1:折射计
      2. 方法2:电导率(EC)
      3. 方法3:离子敏感电极(ISE)
      4. 方法4:滴定
      5. 结论和总结

关于食物中的盐

NATIANRANCUNZAIBINGZUOWEISHIPINZHONGDETIANJIAJIFASHENG。TATONGCHANGYILVHUANA(NaCl)DEXINGSHITIANJIADAOSHIPINZHONG,DANYEKEYIYIQITAXINGSHITIANJIA,BAOKUOYAXIAOSUANNA,TANSUANQINGNA(XIAOSUDA),BENJIASUANNAHEGUANSUANNA(MSG)。JIANGZHEIXIEHUAHEWUTIANJIADAOSHIPINZHONGYIZENGQIANGFENGWEI,CHONGDANGZHANHEJIHE/HUOYIZHIWEISHENGWUSHENGZHANGYIYANZHANGCHANPINDEBAOZHIQI。

南方彩票网 JUGUJI,WOMENSHERUNASHERULIANGGAODA75%  LAIZIBAOZHUANGSHIPINHUOCANGUANSHIPIN。

南方彩票网 NADEQITAZHUYAOGONGXIANZHESHISHIYAN,DIAOWEIPINHEQITADIAOWEILIAO,RUDIAOWEIYAN。ZHONGYAODESHIYAOZHUYI,BINGFEISUOYOUDEYANDOUHANYOULVHUANA。HAIYOUQITAYAN,BAOKUOLVHUAJIA(KCl)HELVHUAGAI(CaCl 2)。DANYIBANLAISHUO,LVHUANASHITIANJIADAOSHIWUZHONG**CHANGJIANDEYANZHIYI。

图表显示食物中的盐的来源

钠对健康的影响

NASHIWOMENSUOYOURENBIXUDEKUANGWUZHI。SHENJINGHEJIROUXITONGBIXUQIZUOYONG。TAZHUYAOCUNZAIYUXUEYEHEXIBAOWAIYEZHONG。XUEYEZHONGDENAHANLIANGDUIXUEYAYOUYINGXIANG。LIRU,XUEYEZHONGNASHUIPINGDEZENGJIAJIANGZENGJIAXUERONGLIANG。XUERONGLIANGDEZENGJIAHUIZENGJIAXUEYA。

南方彩票网 GAOXUEYAYOUXUDUOBULIYINGXIANG,BAOKUOXINXUEGUANJIBING,CHONGXUEXINGXINLISHUAIJIEHESHENZANGJIBINGDEFENGXIANZENGJIA。

立即开始测试氯化钠

南方彩票网 WOMENSHERUNADEZHUYAOLAIYUANSHILVHUANA。YIXUEYANJIUSUODESHIPINHEYINGYANGWEIYUANHUIZHICHU,DUIYU9-50SUIDEGETI,NADEZUGOUSHERULIANG(AI)WEI   MEITIAN1.5KE。ZHEIBUYINGYUJIANYIDEMEIRIJINTIEXIANGHUNXIAO。SUOXUDENALIANG(AI)SHIYIBANXINGCHENSHU。

YOUXUDUOLIZIXUYAOGENGGAODENASHERULIANG。LIRU,YUJIUZUOBUDONGDERENXIANGBI,CHUHANHENDUODEYUNDONGYUANZAICHUHANSHIHUISHIQUGENGDUODENA。

YIXUEYANJIUSUODESHIPINHEYINGYANGWEIYUANHUIHAIZHICHU,WEILEFANGZHI14SUIJIYISHANGDERENXUEYABIANHUA,NADEKENAISHOUDESHANGXIAN(UL)SHERULIANGWEIMEITIAN2.3KE,XIANGDANGYUDAYUE1CHACHIDESHIYAN(NaCl)ZHONG。

BIXUCELIANGJIAGONGHEZHIZAOSHIPINZHONGDENAHANLIANG,BINGZAIBIAOQIANDEYINGYANGCHENGFENBUFENZHONGZHUMING。LIECHUNAYUYIFENSHIWUZHONGNADEMEIRIXIANGGUANBAIFENBIZHI(%DV)YIQILIECHU。100%DVXIAOYU2.4KE/TIAN。SHIWUYEKEGENJUMEIFENNADEHANLIANGJINXINGBIAOJI,YIBIANKUAISUSHIBIE。

CIBIAOXIANSHIGONGSIBIXUZUNXUNDEBIAOQIANZHINAN。

钠分析方法

南方彩票网 YOUXUDUOBUTONGDEFANGFAKEYONGYUCEDINGSHIWUZHONGDENA(YAN)HANLIANG,MEIZHONGFANGFADOUYOUQIZISHENDEYOUDIANHEJUXIANXING。XUANZESHIYONGFANGFASHIZAISHEJIZHILIANGBAOZHENGJIHUASHIZUOCHUDEZHONGYAOJUEDING。

南方彩票网 QUEDINGSHIDANGFANGFADEKAOLVYINSUBAOKUOSHEBEICHENGBEN,QIWANGDEZHUNQUEDUYIJIZHIXINGCESHIDERENYUANDEJINGYANSHUIPING。QUEDINGNAYANHANLIANGDE**CHANGYONGCELIANGFANGFABAOKUO:

      • ZHEGUANG

      • DIANDAOLV

      • LIZIXUANZEXINGDIANJI(ISEs)

      • DIDING

方法1:折射计

南方彩票网 GAIFANGFAJIYUZHESHELVQUEDINGWUZHIDEYANHANLIANG。TONGGUOJIANGGUANGCHUANGUOLENGJINGJINRUYANGPINBINGCELIANGGUANGRUHEWANQULAIQUEDINGZHESHELV。ZHESHEJIQUEDINGYANGPINDELINJIEJIAO。LINJIEJIAOSHIMEIYOUGUANGZHESHEBINGQIESUOYOUGUANGDOUZAINEIBUFANSHEDEJIAODU。

盐度折射仪阴影线

南方彩票网 ZHESHEFAKEYONGYUQUEDINGGEZHONGCANSHU,BAOKUOTANG,BINGERCHUN,MINGJIAOHEYAN。

南方彩票网 MEIGEZHESHEJIDOUJIYUMIDUHEWENDUDUITEDINGCELIANGCANSHUDEZHESHELVDEYINGXIANG。JIANGZHESHELVZHUANHUANWEICELIANGDANWEI,LIRU%Brix(KERONGXINGGUTI,RUZHETANG)HUO%YAN。

ZHESHEYIYOULIANGZHONGLEIXING:SHUZIHEJIXIE。

机械折射仪

SHIYONGJIXIEZHESHEYI,JIANGYANGPINFANGZAILENGJINGSHANG,YONGHUTONGGUOMUJINGGUANCHA“YINYINGXIAN”YIQUEDINGGAILINJIEJIAO。YOUYUWENDUJIDADIYINGXIANGZHESHELV,YINCISHIYONGSHUANGJINSHUTIAOLAISHIXIANWENDUBUCHANG,SUOSHUSHUANGJINSHUTIAOZAIYOUYUWENDUBIANHUAERPENGZHANGHUOSHOUSUOSHIYIDONGTOUJINGHUOBIAOCHI。

南方彩票网 SHOUDONGZHEGUANGYISHIYIZHONGDICHENGBENDETOUZI,DANYOUYUQUEDING“YINYINGXIAN”DEZHUGUANXING,HUANJINGGUANGDEBIANHUAYIJIYOUXIANDEWENDUBUCHANGERJUYOUYOUXIANDEJINGDU。

数字折射仪

南方彩票网 SHUZIZHESHEYISHIYONGGUDINGBOZHANGDENEIBUGUANGYUAN。GAINEIBUGUANGTONGGUOLENGJINGJINRUYANGPIN,NEIBUGUANGJIANCEQISHIBIELINJIEJIAO。

SHUZIZHESHEYIXIAOCHULESHOUDONGQUEDINGYINYINGXIANDEZHUGUANXING,BINGQIEYOUYUSHIYONGLEYUBIANCHENGSUANFAERGAISHANLEWENDUBUCHANG; TAMENHAIKEYIZAIJIAODIWENDUDEJIAGETOUZIXIA,ZAIGENGKUANDEWENDUFANWEINEIJINXINGCELIANG

ZHESHEJIYOUYUQIDIQIDONGCHENGBENERQIEBUSHIYONGHUAXUESHIJIERJUYOUXIYINLI。ZHIXUYAOYIXIAOBUFENYANGBEN。ZHEISHITAMENCHENGWEIZAIJIANDANRONGYEZHONGDINGLIANGSHIYONGDELIXIANGXUANZE,LIRUYANSHUIRONGYE。DANSHI,ZHEIZHONGFANGFABINGBUTEDINGYUYAN。YANGPINZHONGCUNZAIDEQITAWUZHIHUIGAIBIANZHESHELV。ZHEIXIEWUZHIBAOKUOZHIFANG,TANGHEKUANGWUZHI。


HI96821数字折射仪

方法2:电导率(EC)

南方彩票网 SHIYANZAIRONGYEZHONGZUOWEILIANGZHONGLIZIJIELI:NAHELV。YOUYULIZISHIDAIDIANLIZI,YINCIGENGRONGYIDAODIAN。JIEGUO,DIANDAOLV(EC)JIKEYONGYUGUJIRONGJIEZAIRONGYEZHONGDEYANDELIANG。YIDANHUODEECCELIANGZHI,BIXUYINGYONGYANTEYIXINGDEZHUANHUANYINZIYIHUODERONGYEZHONGDEYANLIANG。XUDUOYIBIAODOUNEIZHILECIJISUANGONGNENG。

南方彩票网 YOULIANGZHONGZHUYAOLEIXINGDETANZHENYONGYUCELIANGSHIPINZHONGDEDIANDAOLV:DIANLIUTANZHENHEDIANWEITANZHEN。

安培探针

南方彩票网 DIANHUAXUETANZHENYOULIANGGEBICIJIANGEYIZHIJULIDEDIANJIZHICHENG。GAIJULICHENGWEIXIBAOCHANGSHU。RANHOUJIANGDIANYASHIJIADAOLIANGGEDIANJIBINGZAITAMENZHIJIANCELIANGDIANLIU。**ZHONGKEYIQUEDINGDIANZU,QIKEYIYONGYUJISUANDIANDAOLV。

南方彩票网 DIANLIUXINGDIANDAOLVTANZHENJUYOUXUYAODIYANGPINCHICUNDEYOUDIAN,BINGQIETONGCHANGBIQITADIANDAOLVJISHUBIANYI。RANER,SHIYONGDIANLIUCHUANGANQI,BUTONGFANWEIDEYANXUYAOBUTONGDEDIANCHICHANGSHU。ZHEIYIWEIZHEBUTONGFANWEIXUYAODUOGECHUANGANQI。

电位电导率传感器

DIANWEIJIDIANDAOLVCHUANGANQISHIYONGSIGEHUANXINGDIANJI。ZHEIXIEDIANJIZHONGDELIANGGESHICHUANGANDIANJI; LINGWAILIANGGESHIQUDONGDIANJI。QUDONGDIANJISHIJIAJIAOLIUDIANYA,GAIDIANYAZAIRONGYEZHONGGANYINGCHUDIANLIU。CHUANGANDIANJICELIANGDIANYAJIANG,CELIANGZHIZHUANHUANWEIDIANDAOLV。

南方彩票网 DIANWEIJIDIANDAOLVCHUANGANQIJUYOUGUANGFANDECELIANGFANWEI,JIHUKEYIFUGAISUOYOUSHIPINYANGPIN。RANER,YOUYUSUOYOUSIHUANTANZHENSUOXUDEKONGJIAN,ZHEIXIETANZHENTONGCHANGXUYAOGENGDUOYANGPINYISHIDIANJIWANQUANJINMEI。ZHEIXIETANZHENYEWANGWANGGENGANGGUI,BUFENYUANYINSHITAMENZHIZAOSUOXUDEBO。

DIANDAOLVDAIBIAOLEQCSHEZHIDEYIGEYOUXIYINLIDEXUANZE,YINWEITAYIYUSHIYONGQIEJIAGEHELI。RANER,DIANDAOLVTANZHENCELIANGDIANDAOLV,ERBUSHITEDINGDEYAN。ZHEIYIWEIZHERENHELIZI(LIRUGAI,MEIDENG)DOUHUIGANRAOCELIANG。YINCI,DIANDAOLVCELIANGJINGUJIYANHANLIANGERBUSHITIGONGJINGQUEZHI。

HI931102米方法3:离子选择电极(ISE)

QUEDINGSHIWUZHONGYANHANLIANGDEDISANZHONGFANGFASHISHIYONGLIZIXUANZEXINGDIANJI。ZHEITONGCHANGBEICHENGWEIISE。

ISESHIYIZHONGHUAXUECHUANGANQI,YONGYUQUEDINGRONGYEZHONGTEDINGLIZIDENONGDU。ZAINAISEZHONG,**SHINAMINGANDEBOLIDENGPAO。XIANGpHDIANJIYIYANG,ISEZUNXUNNernstianXIANGYING,ZHEIYUNXUWOMENJIANGHAOFU(mV)DUSHUYUNONGDUZHIXIANGGUANLIAN。

南方彩票网 ISEXUYAOZHUYIQUEBAOZHUNQUEDECELIANG。

NAISEDEBOLIDENGPAOBIXUSHIZHONGZAIDIANJIEZHIRONGYEZHONGSHUIHE。CIWAI,DIANJIDENGPAOXUYAODINGQISHIKEYIQUEBAOZAICELIANGZHIQIANBAOLUCHUXINDECHUANGANBOLICENG。

BIXUMEITIANXIAOZHUNISEYIQUEBAOZHUNQUECELIANG。XIAOZHUNBIAOZHUNYINGBAOKUOSHIWUZHONGNAHANLIANGDEYUQINONGDU。LIRU,YIGEXIAOZHUNBIAOZHUNPINDENONGDUYINGGAOYUYUQIZHI,LINGYIGEXIAOZHUNBIAOZHUNPINDENONGDUYINGDIYUYUQIZHI。

LIZIQIANGDUDIAOJIEJI(ISA)YEBIXUYIGUDINGDEBILITIANJIADAOXIAOZHUNBIAOZHUNPINHEYANGPINZHONG,YIHUODEZHUNQUEDEDUSHU。DIANJIXIANGYINGSHOULIZINONGDUHELIZIHUOXINGDEYINGXIANG。ISABIAOZHUNHUAXIAOZHUNBIAOZHUNPINHEYANGPINZHIJIANDELIZIHUODU,QUEBAODIANJIXIANGYINGDEBIANHUAJIYULIZINONGDUDEBIANHUA。XIAOZHUNWANCHENGHOU,KEYIJINXINGYETIHUOGUTIYANGPINDECELIANG。GUTIYANGPINXUYAOYUCHULIYIZHIBEIJIANGLIAO,RANHOUKEYIYONGTANZHENCELIANGJIANGLIAO。

钠ISE特定于钠测量并且易受干扰。使用ISE测量钠的启动成本是适中的。需要具有ISE浓度读数的pH计或专用的钠ISE计,以及ISE,ISA和校准标准。

方法4:滴定

南方彩票网 DIDINGSHISHIPINZHIZAOSHANGYUNEIBUSHIYANSHIJINXINGYANFENXIDE**CHANGYONGFANGFA。

BAOKUONAILAO,ROULEIHESHUCAIZAINEIDEGEZHONGSHIPINBAOKUOAOACZAINEIDEZUZHICANKAODIDINGFANGFA。DIDINGSHISHIYONGYIZHINONGDUDERONGYE(DIDINGJI)LAIQUEDINGWEIZHIRONGYE(FENXIWU)DENONGDUDEGUOCHENG。

南方彩票网 JIYUYONGYUDADAOZHONGDIANDEDIDINGJIDELIANGJISUANJIEGUO。DUANDIANKEYIDUIYINGYUSHIYONGHUAXUEZHISHIJIDEYANSEBIANHUA,HUOZHESHIYONGDIANWEICHUANGANQI(LIRULVHUAWUHUOYINISE)JINXINGJIANCE。

手动滴定:莫尔法

南方彩票网 TONGGUODIDINGCEDINGYANHANLIANGDEYIZHONGFANGFASHITONGGUOMOERFA。LISHISHANG,MohrFANGFASHIYIZHONGSHOUDONGDIDINGFANGFA,SHIYONGXIAOSUANYINZUOWEIDIDINGJI,GESUANJIAZUOWEIYANSEZHISHIJI。ZAIGAIDIDINGZHONG,SHIYONGRONGLIANGDIDINGGUANJIANGXIAOSUANYINDIDINGJISHOUDONGTIANJIADAOJUYOULVHUAWUFENXIWUZUOWEIZHISHIJIDEYANGPINZHONG。

南方彩票网 YINHELVLIZIZHIJIANDEFANYINGCHANSHENGBURONGDELVHUAYIN(AgCl)CHENDIAN。JIARUXIAOSUANYINZHI**SUOYOULVLIZIYUXIAOSUANYINFANYING。CISHI,RENHEEWAIDEXIAOSUANYINJIANGGUOLIANG,DAOZHIYINLIZIDECUNZAI。

手动滴定滴定管然后银离子将与铬酸钾颜色指示剂结合,在溶液中产生红色。这表示滴定的终点。然后根据加入的硝酸银的体积计算氯化物浓度,然后用于推断钠或氯化钠含量。

南方彩票网 SHOUDONGDIDINGYILAIYUYANSEZHISHIQIBIANHUADEZHUGUANJIESHI。

YINCI,GAIFANGFARONGYIGUOGAOGUJIYANHANLIANG。SHOUDONGDIDINGDELINGYIGETIAOZHANSHIJINGQUECELIANGSUOYONGDEDIDINGJI。

南方彩票网 SHIYONGXIAOSUANYINDIDINGJI,YANSEZHISHIJI,RONGLIANGDIDINGGUANHEQITABIYAODEBOLIQIMINJINXINGSHOUDONGDIDINGDETOUZIFEICHANGDI。

自动滴定:电位滴定法

HI902C自动滴定系统

Titration with silver nitrate can be automated with a potentiometric titration system. A titration system for salt analysis is equipped with an ISE sensitive to the concentration of either chloride or silver ions. The ISE is used to monitor the solution for a change in the mV potential as a result of chloride ions being consumed or the silver ions being in excess.

南方彩票网 DIANWEIDIDINGXITONGKEZIDONGKONGZHIDIDINGJIJILIANGHEZHONGDIANJIANCE。TONGGUOSHIYONGSHIJUEZHISHIQIXIAOCHUYUDIDINGXIANGGUANDERENTIZHUGUANXING,ZIDONGZHONGDIANJIANCETIGAOLEDIDINGJINGDUHEZHUNQUEDU。DIDINGYIBUSHIJIANCEYANSE,ERSHITONGGUOCELIANGmVDIANWEIDEBIANHUALAIQUEDINGZHONGDIAN。ZHONGYAODESHIYAOZHUYI,MEIYOUSHIYONGDIANWEIDIDINGXIAOZHUNISE,YINWEITASHIYIGEZHONGYAODETURANmVBIANHUA。

滴定曲线

南方彩票网 YOUYUNENGGOUFENPEIHECELIANGYOUXIANLIANGDEDIDINGJI,DIANWEIDIDINGYIDEZIDONGPEILIAOXITONGYETIGAOLEJINGDU。

南方彩票网 XUDUODIDINGXITONGJUYOUDONGTAIDINGLIANGDIDINGJIDENENGLI。DONGTAIDINGLIANGJILIAOYUNXUYIBIAOGENJUDIDINGJINCHENGKONGZHIDIDINGJIDEJILIANG。ZAIDIDINGKAISHISHIFENPEIJIAODAJILIANG,SUIZHEJIEJINZHONGDIAN,ZHUJIANFENPEIJIAOXIAOJILIANG。ZHEIJIESHENGLESHIJIANBINGJIANGDILECHAOCHUDUANDIANDEKENENGXING。

南方彩票网 ZIDONGDIDINGYIHAIJIANGZHIXINGSUOYOUBIYAODEJISUAN,BINGYISUOXUDENONGDUDANWEIXIANSHIJIEGUO。ZIDONGDIDINGXITONGDEQITAHAOCHUBAOKUOSHENGCHENGKEZHUISUXINGBAOGAODENENGLIYIJIZHIXINGQITADIDING(BAOKUOSUANDU)DEXUANXIANG。

结论

南方彩票网 CELIANGFANGFAXUANZESHIJIANLISHIPINZHONGYANJIANCEFANGANDE**ZHONGYAOBUZHOUZHIYI。

南方彩票网 YIXIASHIZHAIYAOZHONGDEXUANXIANG:

折光

ZHESHEYISHI**RONGYISHIYONGDE,SHEBEICHENGBENDI,BUXUYAOHUAXUEPIN。TAMENDUILVHUANAMEIYOUXUANZEXING,YINCI,ZHINENGYONGYUJINGAIBIANLVHUANANONGDUDERONGYEZHONGDEDINGLIANGCELIANG。

电导率

DIANDAOLVSHIYIZHONGJIANDANYIYONGDEFANGFA,JIAGEHELI。RANER,DIANDAOLVTANZHENBUNENGCELIANGTEDINGDEYAN,YINCIRENHELIZI(LIRUGAI,MEIDENG)DOUHUIGANRAOJIEGUO。GENJUGUJIDEYANHANLIANGERBUSHIJINGQUEZHI,DIANDAOLV**SHIHEJINXINGCHOUCHA。

离子选择性电极

南方彩票网 NAISEYOUYUQIGAOJINGQUEDUHEZHIJIECELIANGNAERFEICHANGYOUYI。SUOTAOLUNDEQITAFANGFAJINTUIDUANLAIZILINGYICELIANGDENA。RANER,XIAOZHUNHEDIANJIHULISUOXUDEMEIRIZHUNBEISHIJIANHENZHANG,BINGQIEXUYAOYOUXIUDESHIYANSHIJISHUCAINENGHUODEZHUNQUEDECELIANGJIEGUO。

滴定

南方彩票网 ZAISHOUDONGHEDIANWEIDIDINGZHONG,NAHANLIANGYOULVHUAWUNONGDUTUIDUAN。DUIYUYEHANYOUQITALVHUAWUYANERBUJINJINSHILVHUANADEYANGPIN,ZHEIKENENGSHIYOUWENTIDE。LIRU,RUGUOCHULVHUANAWAIHAIJIARULVHUAMEIHE/HUOLVHUAGAI,ZELVHUAWUDIDINGHUIGAOGUNAHANLIANG。

YOUYUCONGYANSEBIANHUAQUEDINGDIDINGZHONGDIANDEZHUGUANXINGHESHOUDONGDIDINGGUANDECUJILIANGFENBIANLV,SHOUDONGDIDINGQUEFAZHUNQUEXINGHEKEZHONGFUXING。

ZIDONGDIDINGYIXIAOCHULEZHEIXIEXIANZHI,BINGTIGONGGAODUZHUNQUEHEJINGQUEDECELIANG。DANSHI,YUQITATIDAODEFANGFAXIANGBI,TOUZI**GAO。

盐方法与定价

LIXIANGDEFANGFAKEYIGENJUJUTICHANPINERBIANHUA,DANZAISUOYOUQINGKUANGXIA,YINGSHENCHASUOYOUKEYONGFANGFADEYIYONGXING,ZHUNQUEXINGHECHENGBEN。ZAIFENXIZHIQIANXUANZEDECELIANGFANGFAYUCHANPINBENSHENDECESHITONGYANGZHONGYAO。