滴定/水分/イオンクロマトグラフィー/近赤外分析計/ラマン分光計/ポテンショスタット/ガルバノスタット/プロセス分析計
アプリケーション検索（技術資料）
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- 8.000.6043Automated dialysis as a sample preparation tool in ion chromatography
The analytical challenge treated in the present work consists in the determination of chloride, phosphate and sulfate in the presence of difficult sample matrices that interact with the stationary column phase or even render it unusable. Metrohm`s patented stopped-flow dialysis coupled to the new 881 Compact IC pro ion chromatograph overcomes these drawbacks. Two standard solutions covering the concentration ranges 1.0…3.6 mg/L and 10…36 mg/L as well as two samples, an ultra-high temperature (UHT) processed milk and a baby milk powder, were characterized in terms of analyte concentration, relative standard deviation, calibration quality, carryover and recovery rates. While the five-point calibration curves yielded correlation coefficients (R) better than 0.9999, carryover (between two subsequent injections of a concentrated sample and a blank) was less than 0.49%. Recoveries for the low (10…36 mg/L) and high standard concentrations (1.0…3.6 mg/L) were within 91…99% and 94…100%, respectively. Automated compact stopped-flow dialysis is a leading-edge sample preparation technique that ensures optimum separation performance by effectively protecting the column from detrimental matrix compounds.
- 8.000.6064Microbore columns: a contribution to green chemistry
Available sample size, mass sensitivity, efficiency and the detector type are important criteria in the selection of separation column dimensions. Compared to conventional 4 mm i.d. columns, microbore columns excel, above all, by their low eluent consumption. Once an eluent is prepared, it can be used for a long time. Additionally, the lower flow rates of microbore columns facilitate the hyphenation to mass spectrometers due to the improved ionization efficiency in the ion source.With the same injected sample amount, a halved column diameter involves a lower eluent flow and results in an approximate four-fold sensitivity increase. In a converse conclusion, this means that with less sample amount, microbore columns achieve the same chromatographic sensitivity and resolution than normal bore columns. This makes them ideally suited for samples of limited availability.
- 8.000.6065Automated ion chromatographic determinations over six orders of magnitude
Metrohm`s intelligent Preconcentration Technique with Matrix Elimination (MiPCT-ME) excels in its capacity to perform automatic ion chromatographic determinations over 6 orders of magnitude. Crucial requirements for this are the system`s intelligence and the exact measurement of the sample volume. While the intelligence allows to compare results and take decisions, the dosing device takes over the high-precision liquid handling of even single-digit microliter volumes to the preconcentration column. By using only one analytical setup and without additional rinsing, samples containing both ultratraces and high concentrations can be analyzed.As the other Metrohm Inline Techniques, the MiPCT-ME technique presented reduces the workload, ensures complete traceability, is free of carryover effects and significantly improves accuracy and reproducibility of the results.
- 8.000.6073Determination of anions in concentrated nitric acid by ion chromatography: the influence of temperature on column selectivity
Determination of chloride and sulfate in the presence of high nitrate concentrations. Optimization of the chromatographic separation by variation of the temperature and eluent composition.
- 8.000.6076Sequential suppression for conductivity detection in ion chromatography
The poster describes how different suppressors (MSM and MCS) work and mentions possible applications.
- 8.000.6086Semi-continuous determination of anions, cations, and heavy metals in aerosols using PILS-IC-VA
This poster presents an approach that couples a Particle-Into-Liquid-Sampler (PILS) to a dual-channel ion chromatograph (IC) for measurement of aerosol anions and cations and a voltammetric measuring stand (VA) to determine the heavy metals. Feasibility of the PILS-IC-VA online system was demonstrated by collecting aerosol samples in Herisau Switzerland, at defined time intervals; air pollution events were simulated by burning lead- and cadmium-coated sparklers.
- AB-127Polarographic determination of nitrite in waters, meat and sausage products
Nitrite can be determined polarographically after its conversion to diphenylnitrosamine (C6H5)2NNO. Potassium thiocyanate is used as a catalyst in order for the conversion to proceed rapidly and quantitatively. The reaction takes place in acid solution at a pH value of approx. 1.5. The limit of quantification is 5 μg/L NO2-.
- AB-265Hamilton PRP-X100 IC anion column (6.1005.000)
This Bulletin describes the determination by ion chromatography of anions, particularly fluoride, chloride, nitrite, bromide, nitrate, and sulfate using the Hamilton PRPX100 IC anion column without chemical suppression.
- AN-D-001Metrohm IC Driver for OpenLab CDS
This application focuses on the simultaneous analysis of cations and suppressed anions with a dual channel Metrohm IC operated by OpenLab CDS.
- AN-D-003Quality control of dialysis concentrates
Ion chromatography (IC) provides an automated, fast, and sensitive solution to accurately quantify cationic and anionic components including acetate simultaneously. This comprehensive approach makes IC an economic alternative to traditional techniques for the quality control of pharmaceutical solutions like haemodialysis concentrates. Ease-of use, accuracy, and the high-throughput of IC increase productivity and comply with the demands of modern routine and research labs.
- AN-H-130Determination of nitrite using sulfamic acid
This Application Note describes the determination of nitrite using thermometric endpoint titration with sulfamic acid. The nitrite content of a solution can be analyzed down to 0.2 mmol/L.
- AN-N-014Five anions in effluent water
Determination of fluoride, chloride, nitrite, nitrate, and sulfate in an effluent sample using anion chromatography with direct conductometric detetction.
- AN-N-025Traces of nitrite, thiosulfate, and iodide using amperometric detection
Determination of traces of nitrite, thiosulfate, and iodide using anion chromatography with amperometric detection at the carbon paste electrode.
- AN-O-038Separation of various sulfur/nitrogen compounds using ion-pair chromatography
Determination of sulfite, nitrite, nitrate, sulfate, imidodisulfonate, and peroxodisulfate using ion-pair chromatography with conductivity detection after suppression.
- AN-PAN-1042Online trace analysis of anions in the primary circuit of nuclear power plants
Measures to monitor or prevent corrosion are crucial in nuclear power plants, where significant risks to health and safety can occur if corrosion is left unchecked. Anions corrode metals under high temperature and pressure, therefore their concentrations must be monitored at all times. The analytical challenge in the primary circuit is detection of anions in the μg/L range alongside gram quantities of boric acid and lithium hydroxide. Precise, reliable trace analysis requires the method to be automated as much as possible. The 2060 IC Process Analyzer from Metrohm Process Analytics can measure several anions from a single injection, with combined Inline Preconcentration and Inline Matrix Elimination to measure low anion concentrations precisely and reliably time after time.
- AN-Q-006加圧水型原子炉（PWR）のホウ酸塩水中の微量アニオンのオンライン分析
この技術資料では、可変濃縮とInline Matrix Elimination ( MiPCT-ME ) を組み合わせたInline Neutralization（ インライン中和 ）を使用することにより、注入前にほう酸を自動除去してからイオンクロマトグラフで微量アニオンを直接分析しています。
- AN-Q-008イオンクロマトグラフィーによる、蒸留水中の微量成分のモニタリング
940 Professional IC Vario、942 Extension Module Vario LQH、941 Eluent Preparation Module の組み合わせにより、イオンクロマトグラフィーを使用したプロセス監視が可能となります。ProfIC Vario 12 Anion の名称を持つこの組み合わせは、Metrohm Process IC の陰イオンバージョンです。サンプル前処理には、マトリックス除去機能を備えたインテリジェント濃度調整技術が使用されます。ELGA PURELAB® Flex 6 の使用により、特にサンプル量が多い場合でも、最高品質の超純水の供給を保証します。
- AN-S-005Six anions in cooling water
Determination of fluoride, chloride, nitrite, nitrate, phosphate, and sulfate in cooling water using anion chromatography with conductivity detection after chemical suppression.
- AN-S-008地表水に含まれる陰イオン6種の分析
電気伝導度検出器付きイオンクロマトグによる地表水中のフッ化物、塩化物、亜硝酸塩、臭化物、硝酸塩、硫酸塩の測定アプリケーションです。
- AN-S-009Six standard anions in soil eluate
Determination of fluoride, chloride, nitrite, nitrate, and sulfate in soil eluates using anion chromatography with conductivity detection after chemical suppression.
- AN-S-020Nitrite and nitrate in wastewater
Determination of nitrite and nitrate in wastewater using anion chromatography with conductivity detection after chemical suppression.
- AN-S-028ppb levels of anions
Determination of 1 (3) µg/L of chloride, nitrite, bromide, nitrate, phosphate, and sulfate after direct injection using anion chromatography with conductivity detection after chemical suppression.
- AN-S-040Five anions in cutting oil emulsions using dialysis for sample preparation
Determination of chloride, nitrite, nitrate, phosphate, and sulfate in cutting oil emulsion using anion chromatography with conductivity detection after chemical suppression and dialysis for sample preparation.
- AN-S-052Anions in rainwater
Determination of fluoride, chloride, nitrite, nitrate, and sulfate in rainwater using anion chromatography with conductivity detection after chemical suppression.
- AN-S-055Reproducibility of 18 injections in the ppb range on the Metrohm IC system using the MSM
Reproducibility of fluoride, chloride, nitrite, bromide, nitrate, and sulfate in the ppb range using anion chromatography with conductivity detection after chemical suppression.
- AN-S-071Traces of chlorite and nitrite using amperometric detection
Determination of chlorite and nitrite using anion chromatography with amperometric detection at the carbon paste electrode after chemical suppression.
- AN-S-100Nine anions in colored liquors
Determination of fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfite, sulfate, and thiosulfate in colored liquors using anion chromatography with conductivity detection after chemical suppression.
- AN-S-103Five anions in water for infusion solutions
Determination of chloride, nitrite, bromide, nitrate, and sulfate in water for infusion solution production using anion chromatography with conductivity detection after chemical suppression.
- AN-S-108Five anions in an electroplating bath after inline elimination of heavy metals
Determination of chloride, nitrite, nitrate, phosphate, and sulfate in an electroplating bath after inline elimination of heavy metals by cation exchange on the 793 IC Sample Prep Module using anion chromatography with conductivity detection after chemical suppression.
- AN-S-109Six anions in Schoeniger absorption solution using the column Metrosep A Supp 5 - 150/4.0
Determination of chloride, nitrite, bromide, nitrate, phosphate, and sulfate in Schoeniger absorption solution using anion chromatography with conductivity detection after chemical suppression.
- AN-S-123Five anions in meat extracts
Determination of chloride, nitrite, nitrate, phosphate, and sulfate in a meat extract (Na2B4O7) after Carrez clearing using anion chromatography with conductivity detection after chemical suppression.
- AN-S-130Six anions in PVC
Determination of fluoride, chloride, nitrite, nitrate, benzoate, and sulfate in PVC film using anion chromatography with conductivity detection after chemical suppression.
- AN-S-133Four anions in wastewater after inline removal of excess chloride
Determination of nitrite, nitrate, sulfite, and sulfate in wastewater containing high levels of chloride using anion chromatography with conductivity detection after chemical suppression and after inline chloride removal.
- AN-S-135Eight anions in river water
Determination of fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfite, and sulfate in river water using anion chromatography with conductivity detection after chemical suppression.
- AN-S-147Ten anions in an extract of explosives
Determination of chloride, nitrite, cyanate, azide, nitrate, chlorate, sulfate, thiocyanate, thiosulfate, and perchlorate in an extract of explosives using anion chromatography with conductivity detection after chemical suppression.
- AN-S-149Anions in tripolyphosphate
Determination of chloride, nitrite, nitrate, phosphate, sulfate, trimeta-, and pyrophosphate in tripolyphosphate using anion chromatography with a high pressure gradient and conductivity detection after chemical suppression.
- AN-S-154Eleven anions with high pressure gradient elution
Determination of fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfate, oxalate, thiosulfate, iodide, and citrate in a standard solution using anion chromatography with a high pressure gradient and conductivity detection after chemical suppression.
- AN-S-156Chloride, nitrite, nitrate, and sulfate in cooling lubricants (conductivity and UV detection)
Determination of chloride, nitrite, nitrate, and sulfate in cooling lubricants using anion chromatography with conductivity and UV detection (230 nm) after chemical suppression and inline sample preparation by dialysis.
- AN-S-173Nitrite and nitrate in a plant extract
Determination of nitrite and nitrate in a plant extract using anion chromatography with conductivity detection after chemical suppression.
- AN-S-176Four anions in betaine
Determination of chloride, nitrite, nitrate, and sulfate in betaine using anion chromatography with conductivity detection after chemical suppression.
- AN-S-177Five anions in inositol
Determination of chloride, nitrite, bromide, nitrate, and sulfate in inositol using anion chromatography with conductivity detection after chemical suppression.
- AN-S-186Anions in wastewater containing N-methylpyrrolidone using inline matrix elimination
Determination of fluoride, acetate, formate, chloride, nitrite, nitrate, phosphate, and sulfate in wastewater containing N-methylpyrrolidone using anion chromatography with conductivity detection after chemical suppression and inline matrix elimination.
- AN-S-187Iodide in the presence of the standard anions in mineral water
Determination of fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfate, and iodide in a mineral water using anion chromatography with conductivity detection after chemical suppression.
- AN-S-190Five anions in a strongly alkaline solution containing 70 g/L vanadate
Determination of chloride, nitrite, nitrate, phosphate, and sulfate in a strongly alkaline solution using anion chromatography with conductivity detection after chemical suppression.
- AN-S-191Chloride, nitrite, and sulfate in a used zinc bath containing cooling lubricants
Determination of chloride, nitrite, and sulfate in a used zinc bath using anion chromatography with conductivity detection after chemical suppression.
- AN-S-196Anions in water from an agricultural irrigation systems
Determination of fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate in water from an agricultural irrigation system using anion chromatography with conductivity detection after chemical suppression.
- AN-S-199Selenite and selenate in the presence of the standard anions
Determination of fluoride, chloride, nitrite, selenite, phosphate, nitrate, sulfate, and selenate using anion chromatography with conductivity detection after chemical suppression.
- AN-S-201Eight anions separated on column Metrosep A Supp 1
Determination of formate, chloride, nitrite, phosphite, phosphate, sulfite, nitrate, and sulfate using anion chromatography with conductivity detection after chemical suppression.
- AN-S-215Qualitative determination of anions in urine to verify adulteration
Qualitative determination of chloride, phosphate, and sulfate as well as chlorite, nitrite, chlorate, bromide, and chromate in urine using anion chromatography with conductivity detection after chemical suppression.
- AN-S-218Common anions in a closed cooling water system
Determination of fluoride, chloride, nitrite, nitrate, and sulfate in a closed cooling water system using anion chromatography with conductivity detection after chemical suppression.
