5-硝基水杨基荧光酮分光光度法测定茶叶中微量锰  被引量：12

Spectrophotometric determination of trace manganese(Ⅱ) in tea with 5-nitro salicylfluorone</em> <p class='article-op'> <span id="bdshare" class="bdshare_t bds_tools get-codes-bdshare baidufx"><span><span class="bds_more" style="display: block; width: 62px; height: 29px; background: url(/images/share.gif) no-repeat!important; padding: 0;"></span></span></span> </p> <p class="article-source"> <a href ='/article/read.aspx?id=6607379' class='btnTitle btnIsView' target='_blank'><img alt='在线阅读' src='/images/btn-read.png'/></a><a class='btnTitle btnIsView' href="javascript:showdown('v9JeBxPrE8k3DCWMr84M7t3hqYIWOjx+lJLcuM18B8I=')"><img alt="下载全文" src="/images/btn-down.png" /></a> <input id="hiddowninfo" type="hidden" value="v9JeBxPrE8k3DCWMr84M7t3hqYIWOjx+lJLcuM18B8I="/> </p> <div class="collect" style="display: none"> <h5>我的收藏</h5> <div class="cnt"> <p> 名 称：<input type="text" name="collTitle" id="collSumTitle" /> </p> <p> 注 释：<input type="text" name="collRemark" id="collSumRemark" /> </p> <p style="text-align: center;"> <a href="javascript:void(0)" onclick="g_collectSumOk();"> <img width="65" height="17" src="/images_new/collect_ok.png" alt="完成" /></a> <a href="javascript:void(0)" onclick="g_collectSumCancel();"> <img width="65" height="17" src="/images_new/collect_no.png" alt="取消" /></a> </p> </div> </div> </div> <form name="wxTransfer" method="post"> <input type="hidden" name="lid" value="" /> <input type="hidden" name="sip" value="" /> <input type="hidden" name="date" value="" /> <input type="hidden" name="co" value="" /> <input type="hidden" name="Title_C" value="" /> <input type="hidden" name="Writers" value="" /> <input type="hidden" name="Name_C" value="" /> <input type="hidden" name="Num" value="" /> <input type="hidden" name="Years" value="" /> <input type="hidden" name="Volumn" value="" /> <input type="hidden" name="GCH" value="" /> <input type="hidden" name="Vol" value="" /> <input type="hidden" name="BookID" value="" /> <input type="hidden" name="SubjectNum" value="" /> <input type="hidden" name="SpecialNum" value="" /> <input type="hidden" name="mirrorName" value="" /> <input type="hidden" name="UserID" value="" /> <input type="hidden" name="UserName" value="" /> <input type="hidden" name="sourceID" value="" /> </form> <script type="text/javascript" src="/scripts/transfer.min.js"></script> <div class="article-detail"> <p class='author'><strong>作　　者：</strong><a href='/writer/article.aspx?id=100000002988004' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e6%95%96%e7%99%bb%e9%ab%98%e5%a8%83%5d' title='敖登高娃[1]'>敖登高娃[1]</a> <a href='/writer/article.aspx?id=100000007342391' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e5%ad%9f%e5%85%a8%e8%83%9c%5d' title='孟全胜[1]'>孟全胜[1]</a> <a href='/writer/article.aspx?id=100000005170765' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e8%b5%9b%e9%9f%b3%5d' title='赛音[1]'>赛音[1]</a> <em> </em></p><p class='organ'><strong>机构地区：</strong><a href='/organ/article.aspx?id=11621&subid=&showname=&searchtype=' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=S%3d%e5%86%85%e8%92%99%e5%8f%a4%e5%a4%a7%e5%ad%a6%e5%8c%96%e5%ad%a6%e5%8c%96%e5%b7%a5%e5%ad%a6%e9%99%a2' title='[1]内蒙古大学化学化工学院,呼和浩特010021'>[1]内蒙古大学化学化工学院,呼和浩特010021</a> <em> </em></p><p class='from'><strong>出　　处：</strong><a href='/journal/summary.aspx?gch=92500X' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=J%3d%5b%e5%88%86%e6%9e%90%e8%af%95%e9%aa%8c%e5%ae%a4%5d' title='分析试验室'>《分析试验室》</a>2002年第4期77-79,共3页<em>Chinese Journal of Analysis Laboratory</em></p><p class='fund'><strong>基　　金：</strong>.NULL.</p><p class='abstrack'><strong>摘　　要：</strong>研究了在混合表面活性剂协同增敏作用下,锰(II) 5 硝基水杨基荧光酮(5 NSAF)的显色反应的条件。在pH9.8～10.6的H3PO4 HAC H3BO3 NaOH缓冲溶液中,Mn(Ⅱ)与5 NSAF形成1∶2的紫色络合物。ε=1.39×105L·mol-1·cm-1,Mn(Ⅱ)浓度在0～15mg/L范围内服从比耳定律。方法已用于茶叶标样中微量锰的测定。<em><Abstrcat> The colour reaction of manganese(Ⅱ) with 5nitrosalicylfluorone(5NSAF) in the presence of cationic surfactant cetyltrimethylammonium bromide and emulsifier OP was studied. In the buffer solution of H3PO4HAcH3BO3NaOH at pH 9.8 to 10.6, manganese(Ⅱ) reacted with 5NSAF and form a 1∶2 purple complex in the presence of the mixed surfactants. The molar absorptivity was 1.39×105 L/mol·cm at 577 nm. Beer′s law was obeyed for manganese(Ⅱ) in the range of 0～15mg/L. This methed was applied to the determination of trace Mn(Ⅱ) in tea samples with satisfactory results.</em></p><p class='subject'><strong>关 键 词：</strong><a href='/subject/article.aspx?id=6755473' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e5%88%86%e5%85%89%e5%85%89%e5%ba%a6%e6%b3%95%5d' title='分光光度法'>分光光度法</a> <a href='/zk/search.aspx?key=K%3d%5b%e6%b5%8b%e5%ae%9a%5d' title='测定'>测定</a> <a href='/subject/article.aspx?id=8082840' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e9%94%b0%5d' title='锰'>锰</a> <a href='/zk/search.aspx?key=K%3d%5b5-%e7%a1%9d%e5%9f%ba%e6%b0%b4%e6%9d%a8%e5%9f%ba%e8%8d%a7%e5%85%89%e9%85%ae%5d' title='5-硝基水杨基荧光酮'>5-硝基水杨基荧光酮</a> <a href='/subject/article.aspx?id=5567049' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e6%b7%b7%e5%90%88%e8%a1%a8%e9%9d%a2%e6%b4%bb%e6%80%a7%e5%89%82%5d' title='混合表面活性剂'>混合表面活性剂</a> <a href='/subject/article.aspx?id=8914685' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e8%8c%b6%e5%8f%b6%5d' title='茶叶'>茶叶</a> <a href='/zk/search.aspx?key=K%3d%5b%e5%be%ae%e9%87%8f%e5%88%86%e6%9e%90%5d' title='微量分析'>微量分析</a> </p><p class='class'><strong>分 类 号：</strong><a href='/zk/search.aspx?key=C%3dTS272.7' title='TS272.7'>TS272.7</a>[<a href = '/domain/article.aspx?id=535' >农业科学—茶叶生产加工</a>] </p> </div> <div id="content_wzxg" name="wzxg" class="article-graph"> <object width="695" height="250" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="FlashID"> <param value="../flash/relation.swf" name="movie"> <param value="high" name="quality"> <param value="opaque" name="wmode"> <param value="6.0.65.0" name="swfversion"> <param value="dataUrl=/ajax/articlerelativegraph.ashx?id=6607379" name="flashVars"> <embed width="695" height="250" src="../flash/relation.swf" type="application/x-shockwave-flash" quality="high" wmode="opaque" 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