that's what i was talking about the light fitted in a quartz sleeve which is submerged in a pvc or teflon pipe.
Re: dehalogenation of loperamide with uv light and isopropanol
« Reply #20 on: November 12, 2010, 03:06:20 AM »
Topic: dehalogenation of loperamide with uv light and isopropanol (Read 341 times)
jon
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Re: dehalogenation of loperamide with uv light and isopropanol
« Reply #21 on: November 12, 2010, 04:20:06 AM »
But it seems that your suggesting the sleeve is around the light which would be very bad.
Honestly as long as reflux is not an issue I would just suggest setting up an open container (like a bowl or something)and allow the light to shine right on down under heavy stirring.
Honestly as long as reflux is not an issue I would just suggest setting up an open container (like a bowl or something)and allow the light to shine right on down under heavy stirring.
jon
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Re: dehalogenation of loperamide with uv light and isopropanol
« Reply #22 on: November 12, 2010, 05:08:20 AM »
the lights are sleeved for water sterization purposes because they are submerged but you right thid is an exaple of what you are talking about.
Photolysis of an 850-mL synthetic air–saturated water sample was carried out at ambient temperature in a recirculating stainless steel flow reactor (7.5-cm diameter, 27-cm length). Figure 1 shows the schematics for the reactor configuration and associated analytical techniques. The source of ultraviolet radiation was a 14-watt low pressure mercury lamp with a maximum output of 10.2 mW cm?2 at 254 nm. The lamp was placed in the center of the reactor and separated from the solution using a quartz tube. The intensity of the lamp was continuously monitored throughout the work for any fluctuation, and was found to be less than 2%.
see anything could affect the bulb even finger prints
http://www.google.com/imgres?imgurl=https://www.crops.org/images/publications/jeq/30/6/2062f3.jpeg&imgrefurl=https://www.crops.org/publications/jeq/articles/30/6/2062&usg=__J_aoNO5rQu0XAnnmxouXq5eGR7w=&h=1215&w=1800&sz=96&hl=en&start=1&sig2=SryMxJHr5DpNrmG7ZOVCKA&zoom=0&um=1&itbs=1&tbnid=Rsv9peftQgAfgM:&tbnh=101&tbnw=150&prev=/images%3Fq%3Dchlorobenzene%2Bwavelength%2Bspectra%26um%3D1%26hl%3Den%26rlz%3D1R2TSNA_en%26tbs%3Disch:1&ei=_tbbTJybI4L48AbrktmTCQ
Photolysis of an 850-mL synthetic air–saturated water sample was carried out at ambient temperature in a recirculating stainless steel flow reactor (7.5-cm diameter, 27-cm length). Figure 1 shows the schematics for the reactor configuration and associated analytical techniques. The source of ultraviolet radiation was a 14-watt low pressure mercury lamp with a maximum output of 10.2 mW cm?2 at 254 nm. The lamp was placed in the center of the reactor and separated from the solution using a quartz tube. The intensity of the lamp was continuously monitored throughout the work for any fluctuation, and was found to be less than 2%.
see anything could affect the bulb even finger prints
http://www.google.com/imgres?imgurl=https://www.crops.org/images/publications/jeq/30/6/2062f3.jpeg&imgrefurl=https://www.crops.org/publications/jeq/articles/30/6/2062&usg=__J_aoNO5rQu0XAnnmxouXq5eGR7w=&h=1215&w=1800&sz=96&hl=en&start=1&sig2=SryMxJHr5DpNrmG7ZOVCKA&zoom=0&um=1&itbs=1&tbnid=Rsv9peftQgAfgM:&tbnh=101&tbnw=150&prev=/images%3Fq%3Dchlorobenzene%2Bwavelength%2Bspectra%26um%3D1%26hl%3Den%26rlz%3D1R2TSNA_en%26tbs%3Disch:1&ei=_tbbTJybI4L48AbrktmTCQ