TOC分析儀用紫外線燈，臭氧汞燈光源

TOC分析儀用紫外線燈，臭氧汞燈光源-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紫外燈---Anatel A-1000

78-2046-1AC 254nm紫外燈----Anatel A-643a

78-2046-1ERA 254nm紫外燈- PAT 700TOC

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

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

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

HC-ARK 35010-01 TOC 專用紫外燈

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

適用于Sievers M系列、900、500、860和CheckPoint的UV燈管，185、254雙波長(zhǎng)。

TOC紫外線燈是如何降解水中TOC的？

水體中的TOC即總有機(jī)碳(Total Organic Carbon)，它是用來(lái)表示水中的有機(jī)物質(zhì)的含量，以有機(jī)物中的主要元素一碳的量來(lái)表示，稱為總有機(jī)碳。TOC紫外線燈用“VH”來(lái)表示185nm,185nmUV燈管是用來(lái)降低TOC（總有機(jī)碳）會(huì)產(chǎn)生OH—（氫氧基）對(duì)各種有機(jī)污染物進(jìn)行徹底的氧化，降解并*終轉(zhuǎn)變?yōu)闊o(wú)污染的CO2（二氧化碳）和H2O（水）。

TOC燈管就是對(duì)水中TOC進(jìn)行處理的設(shè)備，它是利用185nm波長(zhǎng)的紫外燈管直接照射純水，此時(shí)水中TOC與光子直接碰撞的幾率很低，此時(shí)靠水中TOC雜質(zhì)直接吸收185nm紫外光光子能量再分解并形成CO2逸出從而得到降解是很困難的，所以我們一般認(rèn)為185nm波長(zhǎng)的紫外光降解水中TOC時(shí)，波長(zhǎng)為185nm紫外光先與水作用，引起水的均裂反應(yīng)，其反應(yīng)式如下：

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

從上面的反應(yīng)式可以得出185nm紫外光照射水時(shí)，在185nm紫外光所能照射的范圍內(nèi)可以產(chǎn)生中間體HO-、H+和eaq-(水合電子)。這些活性中間體再與水中有機(jī)物發(fā)生親核、親電和電子轉(zhuǎn)移反應(yīng)，引起水中有機(jī)物的降解和礦化，并使其TOC濃度降低，達(dá)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分析儀是將水溶液中的總有機(jī)碳氧化為二氧化碳，并且測(cè)定其含量。利用二氧化碳與總有機(jī)碳之間碳含量的對(duì)應(yīng)關(guān)系，從而對(duì)水溶液中總有機(jī)碳進(jìn)行定量測(cè)定。

TOC分析儀紫外線氧化法是使用UV燈照射待測(cè)水樣，水會(huì)分解成羥基和氫基，羥基和氧化物結(jié)合會(huì)生成CO2和水，然后檢測(cè)新生成的CO2即可計(jì)算出總有機(jī)碳含量。在使用紫外線氧化法時(shí)，通過(guò)添加二氧化鈦，過(guò)硫酸鹽等可以提高氧化能力。紫外線氧化法的優(yōu)點(diǎn)是氧化效率高，保養(yǎng)簡(jiǎn)單，缺點(diǎn)是UV燈管需要定期更換。