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TOC分析仪用紫外线灯,臭氧汞灯光源

作者:上海峰志 时间:2022-07-30 10:42:30浏览1624 次

信息摘要:

Below are some examples of TOC replacement lamps that we manufacture (left) and their equivalent, OEM part number (right). These lamps deliver the same or superior performance and longevity to the OEM lamps. This list is non-comprehensive, so please reach out to us if you do not see the lamp you are looking for here.

TOC分析仪用紫外线灯,臭氧汞灯光源-TOC UV Replacement Lamps

Below are some examples of TOC replacement lamps that we manufacture (left) and their equivalent, OEM part number (right). These lamps deliver the same or superior performance and longevity to the OEM lamps. This list is non-comprehensive, so please reach out to us if you do not see the lamp you are looking for here.

We can also assist with development of the lamp and power supply for any new instruments you plan on developing. 

Medium Pressure UV Lamps

A-1000 254nm紫外灯---Anatel A-1000

A-1000 254nm紫外灯

78-2046-1AC 254nm紫外灯----Anatel A-643a

78-2046-1AC 254nm紫外灯

78-2046-1ERA 254nm紫外灯- PAT 700TOC

78-2046-1ERA 254nm紫外灯

95-2101-2SE  254nm紫外灯---Sievers TOC 400/800

95-2101-2SE  254nm紫外灯

953-2101-2SE  254nm紫外灯---- Sievers TOC 500/900

953-2101-2SE  254nm紫外灯

93-9131-12A 254nm紫外灯 ---- HACH/ASTRO TOC 1950

HC-ARK 35010-01 TOC 专用紫外灯

BHK Analamp 81-1071-06 UV Lamp Replacement ARK 35010-01 Lot of 2

适用于Sievers M系列、900、500、860和CheckPoint的UV灯管,185、254双波长。

TOC紫外线灯是如何降解水中TOC的?

水体中的TOC即总有机碳(Total Organic Carbon),它是用来表示水中的有机物质的含量,以有机物中的主要元素一碳的量来表示,称为总有机碳。TOC紫外线灯用“VH”来表示185nm,185nmUV灯管是用来降低TOC(总有机碳)会产生OH—(氢氧基)对各种有机污染物进行彻底的氧化,降解并*终转变为无污染的CO2(二氧化碳)和H2O(水)。

TOC灯管就是对水中TOC进行处理的设备,它是利用185nm波长的紫外灯管直接照射纯水,此时水中TOC与光子直接碰撞的几率很低,此时靠水中TOC杂质直接吸收185nm紫外光光子能量再分解并形成CO2逸出从而得到降解是很困难的,所以我们一般认为185nm波长的紫外光降解水中TOC时,波长为185nm紫外光先与水作用,引起水的均裂反应,其反应式如下:

H2O→H++HO-①            H2O→H++HO-+eaq- ②

从上面的反应式可以得出185nm紫外光照射水时,在185nm紫外光所能照射的范围内可以产生中间体HO-、H+和eaq-(水合电子)。这些活性中间体再与水中有机物发生亲核、亲电和电子转移反应,引起水中有机物的降解和矿化,并使其TOC浓度降低,达到降解水中TOC作用。


Medium Pressure UV Lamps

Jelight manufactures an extensive range of UV curing lamps as direct replacements. As a manufacturer, we offer a wide range of high-quality replacement UV lamps for a wide range of UV applications. 

All of our bulbs are manufactured to satisfy each client’s unique specifications. As an ISO 9001:2015 registered company, we adhere to strict quality control guidelines and are audited regularly. Our state-of-the-art processing equipment, paired with our experienced workmanship, ensures the highest quality and consistency of our products. Each of our mercury vapor and metal-halide bulbs are tested no less than three times before leaving our facility.

Jelight Company designs, manufactures, and internationally distributes one of the largest selections of replacement UV curing bulbs on the market. We have compatible lamps with all OEMs and since we are a manufacturer, not a re-seller, our pricing is very competitive.

The Jelight Company is capable of producing bulbs ranging from 1-200 inches in length and 25-1500 Watts per inch, with a variety of end caps. Lamp envelopes are available in ozone-producing or ozone-free quartz. 

TOC分析仪是将水溶液中的总有机碳氧化为二氧化碳,并且测定其含量。利用二氧化碳与总有机碳之间碳含量的对应关系,从而对水溶液中总有机碳进行定量测定。

TOC分析仪紫外线氧化法是使用UV灯照射待测水样,水会分解成羟基和氢基,羟基和氧化物结合会生成CO2和水,然后检测新生成的CO2即可计算出总有机碳含量。在使用紫外线氧化法时,通过添加二氧化钛,过硫酸盐等可以提高氧化能力。紫外线氧化法的优点是氧化效率高,保养简单,缺点是UV灯管需要定期更换。


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