YY0469-2011医用外科口罩残留量检�?参数-价格-中国粉体罐�/title>

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<p><strong><span>医疗器械环氧乙烷残留专用气相色谱�?/span><span>食品中的环氧乙烷残留检浊�/span></strong><strong></strong></p><p><strong><span>环氧乙烷残留量检验方法：</span></strong></p><p><strong><span>1.</span></strong><strong><span>环氧乙烷残留量检验原琅�/span></strong></p><p><span>在一定温度下，用水萃取样品中所含环氧乙烷，用顶空气相色谱法测定环氧乙烷含量、�/span></p><p><strong><span>2.</span></strong><strong><span>环氧乙烷残留量检验气相色谱仪条件</span></strong></p><p><span>氢焰鉴定�?/span><span>:</span><span>灵敏度不小于</span><span>2X 1 0-11g/s</span><span>(苯，二硫化碳</span><span>(CS2)</span><span>〔�/span></p><p><span>色谱柰�/span><span>:</span><span>所用色谱柱应能使试样中杂质和环氧乙烷完全分开，并有一定的耐水性。色谱柱可逈�/span></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><span>柱长</span></p></td><td><p><span>内径</span></p></td><td><p><span>担体</span></p></td><td><p><span>柱温</span></p></td></tr><tr><td><p><span>30m</span></p></td><td><p><span>0.53mm</span></p></td><td><p><span>30QC5/AC10-1.0</span></p></td><td><p><span>40</span><span>摄氏�?/span></p></td></tr><tr><td rowspan="2"><p><span>1m-2m</span></p></td><td rowspan="2"><p><span>2mm-3mm</span></p></td><td><p><span>GDX-407 80</span><span>�?/span><span>~100</span><span>�?/span></p></td><td><p><span>�?/span><span>130</span><span>摄氏�?/span></p></td></tr><tr><td><p><span>P.-PA Q- 80</span><span>�?/span><span>~100</span><span>�?/span></p></td><td><p><span>�?/span><span>120</span><span>摄氏�?/span></p></td></tr></tbody></table><p><span>仪器各部位温度：</span></p><p><span>a)</span><span>气化宣�/span><span>200</span><span>摄氏度；</span></p><p><span>b)</span><span>检测室</span><span>250</span><span>摄氏度、�/span></p><p><span>气流野�/span><span>:</span></p><p><span>a)</span><span>氮气</span><span>15m L/min-30m l-/min;</span></p><p><span>b)</span><span>氢气</span><span>30m L/min;</span></p><p><span>c)</span><span>空气</span><span>300 mL/mina</span></p><p><strong><span>3.</span></strong><strong><span>环氧乙烷残留量检验标准贮备液的配刵�/span></strong></p><p><span>取外部干燥的</span><span>50m</span><span>工容量瓶，加人约</span><span>30m 1</span><span>水，加瓶塞，称重＋�/span>**到、�/span><span>0.1 m g</span><span>。用注射器注入约</span><span>0. 6 mL</span><span>环氧乙烷，不加瓶塞，轻轻摇匀，盖好瓶塞，称重，前后两次称重之差，即为溶液中所含环氧乙烷重量。加水至刻度再将此溶液稀释成</span><span>1 X 10-' g/L</span><span>作为标准贮备液、�/span></p><p><strong><span>4.</span></strong><strong><span>环氧乙烷残留量检验制夆�/span></strong></p><p><span>4.1</span><span>试验样制备应在取样后立即进行，否则应将供试样品封于由聚四氟乙烯密封的金属容器中保存、�/span></p><p><span>4.2</span><span>将样品截丹�/span><span>5 mm</span><span>长碎块，叕�/span><span>2. 0 g</span><span>放人萃取容器中，功�/span><span>10 mL</span><span>水，顶端空间</span><span>2</span><span>0 mL</span><span>，容器内压力为常压，</span><span>�?/span>AHS-20A全自动顶空进样器恒温</span><span>60 </span><span>�?/span><span>中放�?/span><span>20 min.</span><span>、�/span></p><p><strong><span>5.</span></strong><strong><span>环氧乙烷残留量检验步骣�/span></strong></p><p><span>5 .1</span><span>用贮备液配制</span><span>1X10</span><span>-3</span><span>g/L�?X10</span><span>2</span><span>g/L</span><span>六个系列浓度的标准溶液。各叕�/span><span>10mL</span><span>挈�/span><span>4 .2</span><span>方法处理、�/span></p><p><span>每个样品</span><span>(</span><span>包括标样</span><span>)</span><span>在尽可能短的时间内分析三次，三次分析中必须有两次结果相差不大亍�/span><span>5%</span><span>，否则此样品应重新进行分析、�/span></p><p><span>5.2</span><span>用标准样所测数据，绘出标准曲线</span><span>(X:EO</span><span>浓度</span><span>/(g/L);Y:</span><span>峰高或面�?/span><span>)</span><span>、�/span></p><p><span>5 .3</span><span>从标准曲线上找出样品相应的浓度。如果所测样品结果不在标准曲线范围内，应改变标准溶液的浓度重新作标准曲线、�/span></p><p><strong><span>6</span></strong><strong><span>．环氧乙烷残留量检验结果计箖�/span></strong></p><p><span>环氧乙烷残留量用</span>**含量或相对含量表示、�/span></p><p><span>按式</span><span>(H.1 )</span><span>计算样品中环氧乙烶�/span>**含量</span><span>:</span></p><p><span>W</span><span>EO</span><span>= 5c</span><span>1</span><span>��</span><span>G</span></p><p><span>式中</span><span>:</span></p><p><span>W</span><span>EO</span><span>—单位产品中环氧乙烷**含量，单位为毫克</span><span>(mg);</span></p><p><span>5c</span><span>1</span><span>—标准曲线上找出的试液相应的浓度，单位为克每卆�/span><span>(g/L);</span></p><p><span>G</span><span>—单位产品的质量，单位为兊�/span><span>(9)</span><span>、�/span></p><p><span>2</span><span>按式</span><span>(H.2)</span><span>计算样品中环氧乙烷相对含野�/span><span>:</span></p><p><span>C</span><span>EO</span><span>= 5c</span><span>1*</span><span>1 0 00</span></p><p><span>式中</span><span>:</span></p><p><span>C</span><span>EO–�/span><span>产品中环氧乙烷相对含量，单位为毫克每千克</span><span>(mg/kg);</span></p><p><span>c</span><span>1–�/span><span>标准曲线上找出的试液相应的浓度，单位为克每升</span><span>(g/L)</span><strong></strong></p><p><strong><span>口罩中环氧乙烷残留量测定解决方案</span></strong><strong></strong></p><p><strong><span>一、配置表９�/span></strong><strong></strong></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><span>序号</span></p></td><td><p><span>名称</span></p></td><td><p><span>型号</span></p></td><td><p><span>数量</span></p></td><td><p><span>单位</span></p></td></tr><tr><td><p><span>1</span></p></td><td><p><span>气相色谱�?/span></p></td><td><p><span>GC-9860</span></p></td><td><p><span>1</span></p></td><td><p><span>�?/span></p></td></tr><tr><td><p><span>2</span></p></td><td><p><span>全自动顶空进样器</span></p></td><td><p><span>AHS-20A plus</span></p></td><td><p><span>1</span></p></td><td><p><span>�?/span></p></td></tr><tr><td><p><span>3</span></p></td><td><p><span>氢气发生�?/span></p></td><td><p><span>BF-300E</span></p></td><td><p><span>1</span></p></td><td><p><span>�?/span></p></td></tr><tr><td><p><span>4</span></p></td><td><p><span>空气发生�?/span></p></td><td><p><span>BF-2L</span></p></td><td><p><span>1</span></p></td><td><p><span>�?/span></p></td></tr><tr><td><p><span>5</span></p></td><td><p><span>氮气发生�?/span></p></td><td><p><span>BF-300N</span></p></td><td><p><span>1</span></p></td><td><p><span>�?/span></p></td></tr><tr><td><p><span>6</span></p></td><td><p><span>SE-54<span>色谱柰�/span></p></td><td><p><span>30m</span><span>��</span><span>0.32mm</span><span>��</span><span>0.5um</span></p></td><td><p><span>1</span></p></td><td><p><span>核�/span></p></td></tr></tbody></table><p><span></span></p><p><span>北京北分三谱仪器有限公司</span><span>技术部</span><strong></strong></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="301205" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" 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