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离线在线一体总有机碳测试仪 超纯水总有机碳分析仪  主要特征:

1、高精度、高灵敏度，操作简单。

2、人性化操作界面，有一键运行功能，自动管路清洗功能。

3、高性能CPU，触摸屏设计，超大640*480点阵真彩显示器。

4、不用拆开机箱更换UV灯和泵管。

5、检测上限可设定，自动上限报警功能。

6、具有RS232数据接口，历史数据可存储6个月。

7、离线检测和在线检测可选配。

8、具有打印功能

离线在线一体总有机碳测试仪 超纯水总有机碳分析仪  差减法的表达式为TOC=TC－IC，即总有机碳是总碳（TC）与无机碳(IC)的差值。

TA-1.0分析仪采用的氧化方法是光氧化法：

H2O hn（185nm）‐> OH? H?OH? 有机物‐> CO2 H2O

二氧化碳的测量方式是差减法：TOC = TC－IC

TOC

为去除氧化生成的CO2，需将样品的pH值再次降低。将CO2吹扫出来，并由特别开发的NDIR CO2检测器进行测量。结果以总有机碳（TOC）方式予以显示。

技术参数

1.电    源：AC220V?22V

2.电源频率：50Hz?1hz

3.额定功率：100W

4.基本尺寸：44CM?18CM?26CM

5.检测极限：0.001mg/L

6.检测精度：?5%

7.检测范围：0.001mg/L～1.000mg/L

8.分析时间：4min

9.响应时间：15 min以内     within15min

10.样品温度：1-95℃

11.内部样品流速：0.5ml/min

12.相对湿度：≤85%

13.重复性误差：≤3%  

14.零点漂移：?5%

15.量程漂移：?5%

16.直 线 性：?5%

测试方法及其原理

国家药典委员会发布的《中华人民共和国药典2010版》二部中推荐采用在线和

离线两种测试方法，还提供了系统适应性试验的操作方法。同时对测试总有机碳的仪

器也提出了要求，即首先要能区分无机碳和有机碳；并能排除无机碳对总有机碳的影

响；其次应满足系统适应性试验的要求；最后仪器应具有足够的检测灵敏度。

要检测样品中的有机物浓度，必须将有机物分子分解并且转化成能够测量的单

分子形式，这样就必须把有机物氧化成二氧化碳，并对生成的二氧化碳进行测量。目

前氧化的方法有四种：一、燃烧法；二、光氧化法；三、湿法氧化；四、光化学法。

氧化后有机碳测试的方法有差减法和直接法两种。

工作原理

本仪器采用紫外氧化的原理，将样品中的有机物氧化为二氧化碳，二氧化碳的测试采用的是直接电导率法，通过测试经过氧化反应的样品的总碳含量和未经过氧化反应的样品总无机碳的含量差值来测定总有机碳含量，即：总有机碳（TOC）=总碳（TC）-总无机碳（TIC）。

总有机碳分析仪可提供两种更快更简便的TOC检测方法，即在线检测和

离线检测。

本测试系统提供了多种测试环境与测试方式，可以实现长期固定安装的水系统

上的在线检测，也可以使用自动连续和手动确认两种方式实现TOC的离线检测， 同

时系统具备历史数据记录和打印的功能。

工作原理

本仪器采用紫外氧化的原理，将样品中的有机物氧化为二氧化碳，二氧化碳的测试采用的是直接电导率法，通过测试经过氧化反应的样品的总碳含量和未经过氧化反应的样品总无机碳的含量差值来测定总有机碳含量，即：总有机碳（TOC）=总碳（TC）-总无机碳（TIC）。

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Main features:

1. High precision, high sensitivity and simple operation.

2. Humanized operation interface, with one key operation function and automatic pipeline cleaning function.

3. High performance CPU, touch screen design, large 640 * 480 dot matrix true color display.

4. Do not disassemble the chassis to replace the UV lamp and pump pipe.

5. The detection upper limit can be set, and the automatic upper limit alarm function.

6. With RS232 data interface, historical data can be stored for 6 months.

7. Offline detection and online detection are optional.

8. With printing function

The expression of difference subtraction is TOC = tc-ic, that is, total organic carbon is the difference between total carbon (TC) and inorganic carbon (IC).

The oxidation method adopted by ta-1.0 analyzer is photooxidation method:

H2O HN (185nm) - > Oh? H?oh? organics) - > CO2 H2O

Carbon dioxide is measured by subtraction: TOC = TC－IC

TOC

In order to remove the CO2 generated by oxidation, the pH value of the sample needs to be lowered again. The CO2 was purged out and measured by a specially developed NDIR CO2 detector. The results are displayed as total organic carbon (TOC).

technical parameter

1. Power supply: AC220V?22V

2. Power frequency: 50Hz?1Hz

3. Rated power: 100W

4. Basic size: 44cm?18CM?26CM

5. Detection limit: 0.001mg/l

6. Detection accuracy:?5%

7. Detection range: 0.001mg/l～1.000mg/l

8. Analysis time: 4min

9. Response time: within 15min

10. Sample temperature: 1-95℃

11. Internal sample flow rate: 0.5ml/min

12. Relative humidity:≤85%

13. Repeatability error:≤3%

14. Zero drift:?5%

15. Range drift:?5%

16. Linearity:?5%

Test method and principle

Online and

The two offline test methods also provide the operation method of system adaptability test. At the same time, the instrument for measuring total organic carbon

The device also puts forward requirements, that is, first of all, it should be able to distinguish inorganic carbon from organic carbon; And the influence of inorganic carbon on total organic carbon can be eliminated

Ring; Secondly, it shall meet the requirements of system adaptability test; Finally, the instrument shall have sufficient detection sensitivity.

To detect the concentration of organics in a sample, the organic molecules must be decomposed and converted into measurable monomers

Molecular form, so that the organic matter must be oxidized to carbon dioxide, and the generated carbon dioxide must be measured. order

There are four methods of pre oxidation: first, combustion; 2、Photooxidation method; 3、Wet oxidation; 4、Photochemical method.

There are two methods for measuring the organic carbon after oxidation: subtraction method and direct method.

working principle

The instrument adopts the principle of ultraviolet oxidation to oxidize the organic matter in the sample into carbon dioxide. The direct conductivity method is adopted for the carbon dioxide test. The total organic carbon content is determined by testing the difference between the total carbon content of the sample after oxidation reaction and the total inorganic carbon content of the sample without oxidation reaction, that is, total organic carbon (TOC) = total carbon (TC) - Total inorganic carbon (TIC).

Total organic carbon analyzer can provide two faster and simpler TOC detection methods, namely online detection and

Offline detection.

This test system provides a variety of test environments and test methods, and can realize long-term fixed installation of water system

On-line detection of TOC can also be realized by automatic continuous and manual confirmation. The same as

The system has the function of historical data recording and printing.

working principle

The instrument adopts the principle of ultraviolet oxidation to oxidize the organic matter in the sample into carbon dioxide. The direct conductivity method is adopted for the carbon dioxide test. The total organic carbon content is determined by testing the difference between the total carbon content of the sample after oxidation reaction and the total inorganic carbon content of the sample without oxidation reaction, that is, total organic carbon (TOC) = total carbon (TC) - Total inorganic carbon (TIC).