UV-100台式臭氧分析�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><font><strong>UV100紫外吸收臭氧分析�?/strong></font></p><p> 联系电话� 010-59483169</p><div><font><strong>紫外吸收臭氧分析�?/strong></font></div><div></div><div> UV光源�?54nm水银灯；</p><p> 检测范围：0�?00ppm；或（可检测至�?�?99ppm）；</p><p> 量程范围: 0-1�?-10�?-100ppm�?.1�?99ppm自动切换：�/p><p> 分辨率：0.01ppm：�/p><p> 精确度：2％；</p><p> 取样时间�?0秒；</div><div> 信号输出�?32接口，内置控制功能；无需专用软件�?～mA�?�?.5V、�/p><p> 电源�?2VDA/400mA：�/p><p> 尺寸�?5��210��216mm：�/div><div align="left"> 这些都是已经安装再仪器里面的。含有一个低浓度臭氧校准器，电源，保护箱，过滤器</div><div></p><p> 仪器特点９�/p><p> 1：校准方便，整机不需寄回原厂；免去麻烦的运输过程及昂贵的运输费用。同</div><div> 时可选择多购一块仪器分析电路，在仪器校准的同时一样可以使仪器工作� 2：仪器小巧，轻便；测量数据准确、快速、�/div><div> 3：仪器内置数据下载软件，可与电脑同步，进行数据保存和分析。多�?万组以上的数据储存功胼�/div><div> 4：价格优惠，此仪器价格仅为同类产品的65％，真正为高档产品低端价格、�/div><div><strong>仪器的原理和结构</strong></div><div> 1� 方法原理</div><div><strong>紫外光度泔�/strong></div><div> 当空气样品以恒定的流速进入仪器的气路系统，样品空气交替地或直接进入吸收池或经过臭氧涤除器再进入吸收池，臭氧对254nm波长的紫外光有特征吸收。零空气样品通过吸收池时被光度检测器测定的光强度为I<sub>0</sub>；含臭氧的空气样品通过吸收池时，被光度检测器测定的光强度为I。每经过一个循环周期，仪器的数据处理系统根据朗�?比尔定律求出臭氧的浓度，关系式如下：</div><div> I / I<sub>0 </sub>= e<sup>a</sup><sup>��</sup><sup>c</sup><sup>��</sup><sup>L</sup></div><div> 式中 a-------吸光系数</div><div> c-------臭氧浓度</div><div> L------吸收池厚�?/div><div></div><div></div><div> 2� 仪器结构</div><div> 紫外臭氧分析仪结构的示意见图�?）。主要部件如下：</div><div> �?� 紫外吸收池：紫外吸收池应以不与臭氧起化学反应的惰性材料制成，并具有良好的机械稳定性。吸收池的臭氧损失不能大�?%。光路长度为已知值的99.5%、�/div><div> �?� 紫外灯：所产生的紫外光被检测器接受�?54nm的辐射至少占99�?%、�/div><div> �?� 光度检测器：光度检测器能满足在254nm波长下测量的灵敏度要求。浓度测量标准偏差不超过0.001mg/m<sup>3</sup>(0℃，101.3kpa)或浓度的2%.</div><div> �?� 臭氧涤除器：空气样品经过臭氧涤除器除支臭氧和干扰气体以后，进入吸收池，并由光度检测器测出I<sub>0</sub>。臭氧涤除器的平均寿命由生产厂家给出。然而实际寿命由采样环境而定。当臭氧涤除器对环境中的臭氧反应明显降低（线性检验精�?1%）时，则应更换臭氧涤除器、�/div><div> �?� 采样泵：采样泵安装在气路的末端，抽吸空气流过臭氧分析仪，并能在仪器所需的流量和压力条件下运转、�/div><div> �?� 流量控制器：控制流过臭氧分析仪的</p><p> 联系电话� 010-59483169</div></td></tr></tbody></table><div></div> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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