Trusted, accurate nitrogen analysis for your process

If you need to measure nitrogen for purity or process control, we have the nitrogen sensor solutions you need. As global experts in gas analysis, we offer accurate, cost-effective solutions to suit your individual process. Combining innovative Plasma Emission Detector technology with Gas Chromatography, our nitrogen gas analyzer products deliver sensitive, reliable results for nitrogen purity, process control, and N2 as a contaminant. Designed for safe area operation, our SERVOPRO nitrogen analyzers – the Chroma, NanoChrome, NanoChrome ULTRA, and Plasma – ensure the accuracy your process requires.

Why measure nitrogen?

Nitrogen is the primary component of atmospheric air, making up about 78% of total content. It is widely used in fertilizers, organic compounds, and pharmaceutics. As a result, many industrial processes need to measure nitrogen, particularly those in the medical gas sector. Nitrogen can be isolated from other air components in an air separation unit (ASU), requiring measurements for both purity assay and as a contaminant in other products such as oxygen and argon. The properties of nitrogen make it useful as an inerting environment in manufacturing, particularly in the electronics and semiconductor markets.

How gas analyzers work to measure nitrogen

Gas Chromatography separates out the constituent components of a gas mixture, allowing relative concentrations to be determined. Under optimized conditions, it can measure down to parts-per-billion (ppb) levels, making it ideal for high-purity control processes.

Servomex’s Plasma emission detection technology was developed to provide a safer alternative to flame-based sensing for hydrocarbon analysis, and delivers ultra-low measurements. It provides highly sensitive and selective speciation, so is only suitable for trace analysis applications.

Our solutions

The Chroma and NanoChrome are both capable of measuring trace nitrogen in background gases, and trace impurities in background nitrogen, making them highly flexible solutions for nitrogen gas analysis.

While the Chroma is a versatile nitrogen gas analyzer, the NanoChrome is specifically designed for semiconductor applications, with the ULTRA model delivering industry-leading lower detection levels for impurities. Additionally, the NanoChrome and NanoChrome ULTRA can form part of a complete single-supplier solution for the analysis of semiconductor gases.

The Plasma is specifically designed for trace-level continuous monitoring of nitrogen in argon, helium, or both, and is used in a range of applications including air separation units.

In addition, Servomex offers the PureGas getter-based purifier for light hydrocarbon measurements. This reduces outlet impurity levels for nitrogen and other compounds to low parts-per-billion (ppb) levels or below, removing impurities by forming irreversible chemical bonds.

Our solutions for nitrogen gas analysis

Servomex offers a range of nitrogen gas analyzers for process control, purity analysis, and contaminant monitoring. Our SERVOPRO products, the Chroma, NanoChrome, NanoChrome ULTRA, and Plasma, combine highly sensitive and accurate Gas Chromatography with an advanced Plasma Emission Detector nitrogen sensor.

Search Servomex 氮 analyzers





  • 多功能、超精确痕量气体分析
  • 非消耗传感器技术的选择
  • 用于过程控制或质量监控的经济高效的解决方案
  • 适用于多种背景气体
  • 紧凑型 4U 机架兼容设计
  • 灵活的通讯选项




  • UHP 气体中的超痕量纯度测量
  • 专为半导体制造而设计
  • 使用先进的等离子发射检测器传感器
  • 灵敏的 ProPeak 软件可实现高精度
  • 无需使用易燃气体
  • 综合报告和统计分析

NanoChrome ULTRA


通过使用成熟的超痕量传感技术,NanoChrome ULTRA征服了半导体行业最严格的要求,与竞争技术相比,提供了一种经济高效的解决方案。

  • 超痕量纯度测量的首选
  • 专为半导体晶圆行业设计
  • 超高纯气体的卓越测量
  • 高度特异性、非消耗 PED 传感
  • 用于高灵敏度测量的 ProPeak 过滤
  • 无需使用易燃气体




  • 氩气中的氮分析
  • 专为 ASU 工厂设计
  • 无与伦比的稳定性和选择性
  • 高规格等离子体发射检测器
  • 标准或高纯度设置模式
  • 可靠、准确的连续监测




  • 基于吸气剂的净化装置
  • 专为气相色谱中使用的载气而设计
  • 将出口杂质水平降低至 ppb 或更低
  • 通过形成不可逆的化学键去除杂质
  • 高效陶瓷纤维保温材料
  • 专为连续运行而设计,无需维修

Proven nitrogen sensing technologies

Our nitrogen analyzer range uses proven sensing solutions that deliver accuracy, ease of use, and a long operational life.

Gas Chromoatography

Gas Chromatography delivers high-purity analysis

Gas Chromatography is an analysis technique that works effectively alongside other sensing technologies, delivering a highly sensitive measurement of the constituent components of a gas sample. It is used in our SERVOPRO Chroma, NanoChrome, and NanoChrome ULTRA analyzers.

Learn more about Gas Chromatography technology

Plasma delivers a highly specific, stable gas measurement

Developed to provide a safer alternative to flame-based sensing for hydrocarbon analysis, Servomex’s Plasma emission detection technology delivers ultra-low gas measurements. It is used in our SERVOPRO Plasma, Chroma, NanoChrome, and NanoChrome ULTRA analyzers.

Learn more about Plasma technology

Useful Nitrogen resources

For more in-depth information about our nitrogen analysis solutions, download our additional expert resources

ES 杂志第 30 期 ASU

ES 杂志第 30 期 ASU

ES 杂志第 29 期清洁空气

ES 杂志第 29 期清洁空气

SERVOPRO Chroma白皮书

SERVOPRO Chroma白皮书



We provide nitrogen solutions for these applications and more

Here are just some of the key applications that can use Servomex analyzer technology to overcome their process measurement challenges.

Explore our full range of applications

Servomex – gas analysis to empower a changing world

Servomex is the global leader in gas analysis, providing solutions for cleaner, more efficient industries, and enabling the manufacture of products that benefit everyone. With 70 years of expertise and research behind us, we deliver industry-changing gas analysis measurements for process control, quality, safety, emissions monitoring, and combustion efficiency.

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Global service support delivered locally

Wherever you are in the world, our network of service engineers provides the expertise you need to keep your nitrogen analyzer operating at peak performance. With state-of-the-art service centers around the globe, you’ll always have the support your process needs.

Service team meeting customer

We provide tailored service packages that support your product throughout its life

Our global service network delivers the support you need to keep your analyzer or system operating at peak performance, for total peace of mind.

Broadly, we categorise our customers into two distinct groups

Purity & Specialty

Our Purity & Specialty (P&S) team provides products, knowledge and service to market sectors including industrial and medical gases, UHP gases, and semiconductor manufacture

Industrial process & Emissions

Our Industrial Process & Emissions (IP&E) division is responsible for our gas analysis solutions in the power generation, hydrocarbon processing and emissions monitoring markets

Choose the experts in Nitrogen gas analysis


We consult with you to determine what you need

Our team stays in place throughout the project, ensuring consistent communication. This starts with identifying the parameters that the system must meet to ensure optimum performance and ease of use.

We design and build your system in our dedicated facility

Our schematics and documents are reviewed by the customer until the final design is agreed upon. Our skilled engineers then assemble the system at one of our cutting-edge regional centers, with continuous evaluation throughout the build process.

We test and deliver your integrated solution

After internal testing and an intensive Factory Acceptance Test (FAT), the finished system is shipped for installation. Our expert support team can commission and calibrate the system and provide any necessary operator training.

The Servomex difference is clear from the start, all the way through to the delivery of an Nitrogen gas analysis system that will transform your process.

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