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Sievers TOC分析设备和分析仪器

无可匹敌的分析性能、可靠性和易用性

作为全球领先的总有机碳(TOC)分析仪和分析仪器制造商,我们提供优异的技术、设计、质量和服务。我们已收购了30多项技术创新专利——包括Sievers膜电导率法和集成在线取样(iOS)系统。Sievers TOC分析仪覆盖了从0.03 ppb一直到50,000 ppm的动态分析范围,并提供涉及多个行业和应用的解决方案。除了提供值得信赖的仪器外,我们也提供无与伦比的Sievers认证服务、标准品和样品瓶以及应用专业知识。

Sievers TOC分析设备和分析仪器

无可匹敌的分析性能、可靠性和易用性

作为全球领先的总有机碳(TOC)分析仪和分析仪器制造商,我们提供优异的技术、设计、质量和服务。我们已收购了30多项技术创新专利——包括Sievers膜电导率法和集成在线取样(iOS)系统。Sievers TOC分析仪覆盖了从0.03 ppb一直到50,000 ppm的动态分析范围,并提供涉及多个行业和应用的解决方案。除了提供值得信赖的仪器外,我们也提供无与伦比的Sievers认证服务、标准品和样品瓶以及应用专业知识。

What is a TOC Analyzer?

Total Organic Carbon (TOC) analyzers perform two functions: they oxidize the organic carbon in a sample to COand measure the COproduced. What makes TOC analyzers different is the method they use to oxidize the organics and the methods used to detect the resulting CO2.

The three main methods of COdetection used commercially are:

  1. Non-dispersive infrared (NDIR)
  2. Direct Conductometric (Non-selective Conductometric)
  3. Membrane Conductometric Detection (Selective Conductometric)

NDIR TOC detectors measure CO2 in the gaseous phase, while conductometric TOC detectors measure CO2 in the liquid phase.

What does TOC measure?

Total Organic Carbon (TOC) is an indirect measure of organic molecules present in a sample and measured as carbon. TOC measurement includes oxidizing organic carbon, detecting the oxidized carbon (ofter detected as CO2 by conductivity or NDIR), and expressing the result as carbon concentration.

How is TOC calculated?

TOC is calculated as the difference between total carbon (TC) and inorganic carbon (IC) in a sample.

TOC = TC-IC

This is often done by measuring total carbon, oxidizing organic carbon into CO2 and then detecting COwith conductivity or NDIR.

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