应用领域 乳糖 食品 关键词 850； 乳糖； Metrosep Carb1-150/4.0 摘要 采用850型高压梯度淋洗-脉冲安培电化学检测器对乳糖中的杂质进行了分离，实验采用Metrosep Carb1-150/4.0色谱分离柱；淋洗液：10 mmol/L氢氧化钠；柱温32°C，定量环20μL，流速1.0ml/min。

应用领域 常规化学 关键词 940；酒石酸钠；阴离子； 摘要 使用940 离子色谱仪，用Metrosep A Supp 7-250 色谱柱，淋洗液采用 Na2CO3 3.6 mmol/L， 定量环20μL，流速0.7 ml/min,手动进样。

应用领域 化工行业 关键词 930;882；己二酸；Metrosep A Supp 5-250/4.0；硝酸根 摘要 测定己二酸中硝酸根离子实验中使用930和882离子色谱仪联用进行柱切换前处理，样品经重结晶前处理后过滤膜直接进样。使用Metrosep A Supp 5-250阴离子色谱柱，淋洗液采用Na2CO3 3.2 mmol/L+NaHCO3 1.0 mmol/L，定量环20μL，流速0.7 ml/min。

应用领域 食品 关键词 火腿肠；亚硝酸盐；硝酸盐；850 ；Metrosep A Supp 5-250 /4.0 摘要 采用850型离子色谱对火腿肠中的亚硝酸盐和硝酸盐进行了分离测定，实验采用Metrosep A Supp 5-250 /4.0+Metrosep RP2 Guard色谱分离柱；淋洗液A： 5mmol/L NaOH ，淋洗液B：50 mmol/L NaOH。定量环50μL，流速0.7 ml/min，采用919自动样品处理器进样。

应用领域： Metal, electroplating 关键词： 阴离子，水样，离子色谱 样品： 挥发油 设备和附件： 850+858+MIPT+Supp 7-250

应用领域： Water,waste water,environmental protection 关键词： 废水，阴离子，离子色谱 样品： 处理过的废水，澄清 设备和附件： 850+858+MIPT+Supp 7-250

应用领域 制药行业 关键词 离子色谱仪，电导检测器，基体消除，厄贝沙坦，叠氮根 离子，保留时间 摘要 本报告采用基体消除离子色谱法，等度条件测定厄 贝沙坦中叠氮根离子的含量，将样品加标连续20 针进样，电导检测器检测，对叠氮根离子的保留时 间进行了验证；淋洗液：5.0 mM Na2CO3+5.0 mM NaHCO3 水溶液；基体消除试剂：90%甲醇溶液； 进样体积 250 μL。

本实验采用离子色谱法，以80mM氢氧化钠为淋洗液，等度洗脱，电导检测器检测，测定厄贝坦中的叠氮根离子。

应用领域 材料，纺织工业 关键词 离子色谱仪，电导检测器，NMMO 水溶液，碱性，M， NMM，NMMO 摘要 本报告采用离子色谱法同时测定N-甲基氧化吗啉 水溶液中的M、NMM、NMMO 含量，电导检测 器检测 ；淋洗液：1.0 mM 乙二胺水溶液（盐酸调 节PH=3.2±0.05）；进样体积 20 μL。

应用领域 制药 关键词 离子色谱仪，等度淋洗，电导检测器，那曲肝素钙，亚硝 酸根 摘要 本实验采用瑞士万通离子色谱仪，等度淋洗，测定那曲 钙素钙中的亚硝酸根。 那曲肝素钙（Nadroparin Calcium）是一类多糖物 质，在碱性的淋洗液条件下生成带负电荷的物质， 强保留在色谱柱上，需要进行合适的样品前处理。

本实验采用瑞士万通离子色谱仪，等度淋洗，测定那曲 钙素钙中的硫酸根。 那曲肝素钙（Nadroparin Calcium）是一类多糖物 质，在碱性的淋洗液条件下生成带负电荷的物质， 强保留在色谱柱上，需要进行合适的样品前处理。

应用领域： 普通化工 关键词： 881，密封件，萃取液，氟离子，氯离子 样品： 萃取溶液（客户提供） 设备和附件： 881 Compact IC Metrosep A Supp 7-250/4.0mm 样品处理： 萃取溶液直接用英蓝超滤模块进样，进样体积20μL。配置10mg/L 的氯离 子溶液，单点校正。

应用领域： 有机化工 关键词： 881，甲基肼，氯离子 样品： 40%的水溶液，剧毒 设备和附件： 881 Compact IC Metrosep A Supp 4-250/4.0mm 样品处理： 因为样品易溶于水，所以直接进样，进样体积20uL。配置10mg/L 的氯离子 溶液，单点校正。

本实验采用瑞士万通离子色谱仪，非抑制，测定高钠离子背景下的铵根离子。 在色谱柱推荐的淋洗液条件下，对比Metrosep C6-150/4.0mm 和Metrosep C 4 – 250/4.0mm 对Na/NH4 的分离性能。

本实验采用瑞士万通离子色谱仪，等度淋洗，测定阿霉 素脂质体中的硫酸根和铵根。 阿霉素脂质体是被一层磷脂包裹的药物，硫酸铵和阿霉素一起被包在脂质体内部，其中部分硫酸根和阿霉素形成胶状沉淀，因此需要进行破乳样品预处理。

由于电镀液中的邻甲酰基苯磺酸的检测在常规检测时需要稀释后放置一段时间才能得到准确的检测结果，针对该现象对比了不同的前处理方法，证明对样品进行酸化处理能够有效的改善结果，能够在较短时间内进行快速测定。

草甘膦（分子式为C3H8NO5P）是农业生产中一种应用相当广泛的除草剂，具有广谱高效，低毒、易分解、无残留等特性。草甘膦对生物体有较大危害，可能引发过度兴奋、运动失调、昏迷、呼吸中枢麻痹甚至死亡，我国生活饮用水标准中对草甘膦的卫生限量值为0.7mg/L。常见的草甘膦检查方法有分光光度法、液相色谱法、液质联用法。但光度法误差大，灵敏度较低；液相色谱法需要复杂的前处理过程，样品制备复杂；液质联用法成本较高。本文利用离子色谱电导检测法测定生活饮用水中草甘膦含量，省去了复杂的前处理方法，而且能同时测量水中的其他阴离子指标。该方法简便，准确，灵敏度高，特别适用于生活饮用水中草甘膦和各类常规阴离子的同时定量测定。

传统的化学分析方法用比色法检测还原糖和总糖的含量。近年来, 国内专家们开发了各种基于光学原理的糖类浓度检测设备， 主要用于测定糖的总量，不能区分糖的种类及每种糖的含量；又有用超声法拟合检测果汁中的糖组份浓度，后期计算较复杂，而色谱法是目前用来对各种糖种类进行分离和定量的主要方法，其中有气相色谱法和高效液相色谱法分离和定量游离糖，但这些方法选择性不强，需要用固相萃取小柱进行预分离，前处理繁琐，不仅耗时耗力，而且会对结果的准确性造成一定影响。 本文采用离子色谱脉冲安培检测法对苹果汁中的三种糖含量进行检测，样品稀释后可以直接测定，避免了复杂的前处理过程。结果显示该方法具有较好的选择性和精密度。

采用离子色谱法检测厄贝沙坦中的叠氮根离子含量具有较高的灵敏度和准确度，方法成熟，完全符合各国药典中对叠氮化物含量控制的要求。

目前对于水质COD的测定普遍采用标准方法，即重铬酸钾氧化法，但是该方法存在操作繁琐，费时，受人为因素影响较大，不适合批量水样的测定等缺点[2]。最新实施的行业标准—快速密闭消解分光光度法[3] 能很好解决以上问题，但当遇上水样消解后溶液颜色异常或离心后不能变澄清的样品，该方法就显示出其局限性。另外，采用酸式滴定管进行手工滴定受容量分析法限制，结果的准确度和精密度随操作条件和熟练程度的不同而差别很大，并且分析劳动强度大。因此，寻找一种快速、简便、准确、实用的分析方法已引起人们的极大重视。利用自动电位滴定仪代替酸式滴定管，并加上自动样品处理器，实现了滴定分析自动化与批量化，避免了因操作人员不同带来的误差，且减轻了工作量，提高了分析工作效率。

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目前测定钙首选原子吸收光谱法，但是样品需经消化处理后方能测定，而且检测过程易受污染。滴定法（EDTA法）虽然经典成熟，不要求高级设备，但操作过程烦琐、耗时。具有英蓝渗析超滤系统的离子色谱仪对肮脏样品有自动净化处理功能，为此建立离子色谱法测定维他命果汁中钙的方法, 样品稀释后直接进样测定，测量结果满意。

Bj.sunh@metrohm.com.cn 葡萄酒中铂和铑的主要来源为：葡萄种植中土壤和果园周围汽车尾气中以及生产中酒与容器、酒泵、管路接触时从不锈钢材质溶解出的痕量金属。这些重金属离子的存在，会影响葡萄酒的稳定性和口感。经紫外消解处理后的样品，铂和铑元素采用吸附溶出伏安极谱仪的悬汞模式（HMDE），标准加入法检测，铂和铑这两种元素的检出限均能达到5ng/L。本研究开辟了在食品分析领域中电化学方法检测食品中超痕量重金属残留的新途径。

Reinforced concrete structures installed in coastal zones have constantly been threatened by environmental damaging elements. The chloride ion is known as one of the most aggressive of these elements, causing, among other damages, corrosion of the steel reinforcement and then degradation of the concrete matrix. The goal of this work was to determine the influence of cement type on the resistance and durability of reinforced concrete samples with 25 mm cover thickness, when submitted to aging in a 3.4% sodium chloride aqueous solution and in a high salinity marine environment. Reinforced concrete light poles were cast following the same batching procedures, and after the curing period, they were exposed to atmosphere in a corrosion station near Aracaju, Sergipe State, Northeastern Brazil’s coast. Two concrete mixtures were made using CPII-F 32 (filler-modified Portland cement): a mix with no admixture and a mix with addition of 8% silica fume swapping fine aggregates. Another mixture was batched with CPV-ARI RS (high-early-strength Portland cement, with sulfur resistance). All the three mixture were designed with cement content of about 350 kg/m3. The performance of the structures was evaluated from the results of physicochemical, mechanical and electrochemical testing, after over a year of natural aging. Corrosion potentials of the reinforced concrete samples and of the cast utility poles were measured in terms of the aging time at the natural environment and under chloride ion accelerated aging at laboratory. The half-cell potential measurements showed that the best results were obtained from the mixture containing CPII-F 32 cement and silica fume, followed by the concrete made with CPV-ARI RS cement. The mixture batched with CPII-F 32 cement without admixture presented the worst durability performance.

Results are reported of experiments and modelling of cathodic Pb and anodic PbO2 electrodeposition, aimed at developing a process using both reactions simultaneously for treating aqueous effluents from lead-acid battery plants. Pb(II) solubilities and equilibrium potentials were calculated as functions of pH and sulfate activities. Using kinetic parameters from the literature or determined experimentally, (illustrative) models were developed for current density-potential and current efficiency-potential relationships, together with the current density dependence of specific electrical energy consumptions for Pb(II) recovery. Experimental current density-potential and charge efficiency-potential relationships were in broad agreement with model predictions, with near unity current efficiencies for mass transport controlled PbO2 deposition from electrolytes containing 1 mol Pb(II) m-3 at pH 0.7 or 12. However, charge efficiencies for cathodic deposition of lead were typically 0.2 for 1 mol Pb(II) m-3 + 1 mol O2 (aq) m-3; removal of dissolved oxygen was predicted and determined to increase current efficiencies to near unity. Simultaneous cathodic Pb and anodic PbO2 electrodeposition was predicted to be feasible, with tight control of current densities being required to minimise specific electrical energy consumptions.

Polyaniline ~PANI! has been studied as an active material for electrochemical capacitors. Polymerization of aniline to PANI has been carried out potentiodynamically on a stainless steel ~SS! substrate, instead of Pt-based substrates generally employed for this application. The PANI/SS electrodes have been evaluated by assembling symmetrical capacitors in NaClO4 1 HClO4 mixed electrolyte and subjecting them to galvanostatic charge/discharge cycles between 0 and 0.75 V. The effect of substrate has been assessed by comparing the capacitance of PANI/SS and PANI/Pt electrodes. The capacitance of PANI/SS electrode is higher than that of PANI/Pt electrode by several times. The effect of sweep rate of potentiodynamic deposition of PANI/SS on capacitance has been investigated. At a power density of 0.5 kW kg21, a capacitance value of 815 F g21 of PANI is obtained for the deposition sweep rate of 200 mV s21. Increase in thickness of PANI on the SS substrate results in an increase in capacitance of PANI. This value of capacitance is the highest ever reported for any electrochemical capacitor material. Thus, in addition to a favorable economic aspect involved in using SS instead of Pt or Pt-based substrate, the advantage of higher capacitance of PANI has also been achieved.

The effectiveness of red mud as corrosion inhibitor of carbon steel embedded in concrete was evaluated using cyclic voltammetry and electrochemical impedance spectroscopy. The testing media were red mud solutions (pH=12), alkaline solutions having the same pH (NaOH 0.08M and Ca(OH)2 0.04M), and reinforced mortar. In all cases chloride additions were used for evaluating the inhibition effectiveness. The results show that red muds are able to maintain steel passivity in presence of high chloride concentration, i.e., in mortar 3% CaCl2 by weight of cement, and in solution a ratio Cl-/OH- equal to 5 (maximum tested values).

12 V/25 AH gelled-electrolyte valve-regulated lead-acid batteries have been assembled in-house and their performance studied in relation to the absorptive glass-microfibre valve-regulated and floodedelectrolyte counterparts at various discharge rates and temperatures between – 40°C and 40°C. Although the performance of the gelled-electrolyte valve-regulated battery is similar to both the absorptive glass-microfibre valve-regulated and flooded-electrolyte lead-acid batteries at temperatures above 0°C, it is superior to both the flooded-electrolyte and absorptive glass-microfibre valve-regulated lead-acid batteries at temperatures between 0°C and – 40°C. The latter characteristic is attractive for expanding the application regime of valveregulated lead-acid batteries. The corrosion rate for the positive grids in the gelled-electrolyte is also lower than both the flooded-electrolyte and absorptive glass-microfibre configurations.

The addition of optimumcetyl pyridiumchloride (CPC)–modified montmorillonite (CM) increases the ionic conductivity of poly(acrylonitrile)-based electrolytes by roughly two orders of magnitude. Specific interactions between the silicate layer, the nitrile group, and the lithium cation were investigated by FTIR, solid-state NMR, dielectric analyzer, and alternating current impedance. IR and NMR spectra confirm that the negative charges in the silicate layers alter the ionic charge environment of the PAN-based electrolyte composites, which have the same function as the polar group in PAN. The optimum CM content to achieve the maximum ionic conductivity is 6 phr. However, untreated montmorillonite leads to insignificant polymer intercalation, the negative charges in the silicate layers fail to appreciably disturb the attractive force of the lithium salt, and the resulting conductivity improvement is also less than that of the CM additives.

A comparative study between a high solid paint (P1) and a traditional coat (P2) was made using EIS technique, both paints were applied over weathering galvanised steel. The results indicated that the high solid paint had the better behaviour and so, it represents a good environmentally friendly alternative. Previously, the optimum weathering degree was assessed based on the impedance modulus evolution and the surface roughness profiles. In the last part of this work, the macroscopic behaviour of a new paint system, based on P1 priming coat and a water-borne resin as a topcoat, was evaluated by submitting to different accelerated tests. The influence of weathering galvanised degree was analysed, as well. Regardless of the test, the increase of such parameter was corresponded to an behaviour improvement.