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液相色谱-电感耦合等离子体质谱联用仪(LC-ICP-MS) 测定水质中Cr3+、Cr6+解决方案

随着工业的迅速发展,环境污染的威胁日趋严重,准确测定Cr3+和Cr6+,对于保护我们的生命健康和生态环境有着非常重要的意义。液相色谱-电感耦合等离子体质谱联用仪(LC-ICP-MS)以其较高的灵敏度、较低的检出限、优异的离子分离性能,为Cr3+和Cr6+的测定提供了一条有效的途径。

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产品
电感耦合等离子体质谱仪

电感耦合等离子体质谱仪

型号:ICP-MS 2000系列

通过台式NMR和Lithium-7 qNMR方法定量盐水中锂含量

测定实际盐水样品中的锂元素含量,还测定了线性度、精度和偏差,在采矿业中具有远大的适用前景。

气相色谱法环境中TVOC、VOCs解决方案

热解析仪对吸附采样管进行二次热脱附,并将脱附气用载气带入气相色谱。脱附温度及脱附时间,流速可调,冷阱能实现快速升温。冷阱一般采用半导体制冷,热脱附装置与气相色谱相连部分和仪器内气体管路均应使用硅烷化不锈钢管,并至少能在50-150度之间均匀加热。

推荐
产品

行业应用丨环境污染物中酚类化合物检测

环境中酚类化合物主要来源于石油化工、塑料制造、颜料合成、制药、造纸等工业污水排放沉积,容易造成环境污染。酚类化合物的含量是表征环境中有机物污染程度的重要指标。如果环境中存在酚类化合物时,需要对其进行降解处理,否则会影响环境安全。但酚类化合物对污泥微生物的生长代谢具有显著抑制作用,严重影响处理单元的处理效果。

推荐
产品
液相HPLC/UHPLC

液相HPLC/UHPLC

型号:蒲公英

TXRF对水样、烟叶、污泥的检测应用

TXRF是一种能量色散X射线荧光(EDXRF),其中X射线以很小的入射角照射以薄层形式沉积在样品台上的样品,进而产生全反射效应。

纯水和超纯水pH值的测量——玻璃电极法

饮用纯净水、发动机冷却水、锅炉给水等纯水或超纯水样品对水质pH有着明确要求,当pH偏离正常范围往往意味着水质恶化、可能损伤设备。与缓冲溶液和常规样品相比,超纯水和纯水的pH测量往往比较困难。因为纯水电离出来的离子少、电阻大,普通的pH电极在测量的过程中会发生响应缓……

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产品
超纯水pH复合电极

超纯水pH复合电极

型号:6221
实验室pH计

实验室pH计

型号:PHSJ-6L

水中19种磺胺类抗生素药物的测定解决方案

磺胺类药物(Sulfonamides,SAs)是指具有对氨基苯磺酰胺结构的一类药物的总称,是一类用于预防和治疗细菌感染性疾病的化学治疗药物。SAs种类可达数千种,其中应用较广并具有一定疗效的就有几十种,常见的磺胺类药物。磺胺药是现代医学中常用的一类抗菌消炎药,其品种繁多,已成为一个庞大的“家族”了。

凯氏定氮仪测定水中凯氏氮的含量

水中凯氏氮是指以凯氏法测得的含氮量,它包括氨氮和此条件下能被转化为铵盐的有机 氮化合物。测定凯氏氮主要是为了了解水体受污染状况,在我国饮用水源地调查监测中,凯氏氮是其中一个监测指标。

推荐
产品
全自动凯氏定氮仪

全自动凯氏定氮仪

型号:K1160+K1124

气相色谱法测定水中的亚硝胺

N-亚硝胺是有潜在致癌性的一类化合物,亚硝胺类化合物在食品和烟草中的发现和研究较为广泛,近年来,人们在饮用水,污水处理消毒后的水体以及直接受工业源污染的水体中均发现了亚硝胺的存在。他们是由亚硝化试剂(亚硝酸盐,氮氧化物等)与胺类物质(主要是次级胺类物)反应生成的。近年来在水环境中这类化合物的高检出率引起了人们的广泛关注。前体化合物如亚硝酸盐和有机氮在水中进行亚硝化或氧化反应可以形成N-亚硝胺。

新UV法总氮预制试剂在环保系统的成功应用

广东省某二级城市的环保局,一直以来也是使用国标方法HJ636-201测量各类水样(包括地表水、企业排放口)的总氮。但由于样品量比较多,操作比较繁琐,测量结果的平行性和可靠性也不怎么理想。听闻哈希将要上市一款符合标准方法的预制试剂,该单位立即申请试用 该试剂。

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