拉曼光譜在環工的應用有哪些? - 空氣污染

Rosalind avatar
By Rosalind
at 2006-06-15T00:00

Table of Contents

找資料都是跟化學或地質有關...
很少是跟環工有相關的...
請問哪裡有關於拉曼光譜在環工應用的資料來源?
就是跟空氣污染..或水質方面的..>\"<

All Comments

Olga avatar
By Olga
at 2006-06-16T08:48
Raman spectroscopy is also used in combustion diagnostics. Being a completely non-intrusive technique, it permits the detection of the major species and temperature distribution inside combustors and in flames without any perturbation of the (mainly fluid dynamic and reactive) processes examined.
圖片參考:http://upload.wikimedia.org/wikipedia/en/8/87/Rama...
Raman spectroscopy is commonly used in chemistry, since vibrational information is very specific for the chemical bonds in molecules. It therefore provides a fingerprint by which the molecule can be identified. The fingerprint region of organic molecules is in the range 500-2000 cm-1. Another way that the technique is used is to study changes in chemical bonding, e.g. when a substrate is added to an enzyme.An important advantage of Raman spectra over infrared lies in the fact that water does not cause interference; indeed, Raman spectra can be obtained form aqueous solutions. In addition, glass or quartz cells can be employed, thus avoiding the inconvenience of working with sodium chloride or other atmospherically unstable confinements. Thus aqueous solutions can be studied by Raman spectroscopy but not by IR. This advantage is particularly important for biological and inorganic systems and in studies dealing with water pollution problems. Despite these advantages, Raman spectroscopy is subject to interference by fluorescence or impurities in the sample.Rosen used Raman spectroscopy to unambiguously demonstrate that BC is composed of graphitic-like carbon. Rosen put together a simple device that measured the absorption of light by black carbon deposited on a filter with air passing through it."I deduced that the rate at which the filter became black with carbon was proportional to the amount of carbon in the air," says Hansen. This suggested that a real-time measurement device was possible.

台灣計程車明顯的問題有哪些?

Edith avatar
By Edith
at 2006-06-14T00:00
我稍微了解台灣主要空氣污染有工業排放、機車、汽車這些主要禍首,但我發現其實都市裡面,除了大量的機車之 ...

non-somking

Isabella avatar
By Isabella
at 2006-06-14T00:00
抽菸會引起體內許多器官系統之傷害,很多吸菸的朋友都說:別人抽菸十幾年都好好的,有什麼關係啊?
  根據【大紀元5月30日訊】中國衛生部衛生�� ...

住家附近受到空氣污染該找誰申訴

Mary avatar
By Mary
at 2006-06-14T00:00
最近住家附近新開一家臭臭鍋店裡廚房的排風管將廚房的味道排出味道臭到不行,附近住家整個房間都臭氣沖天,會有酸酸的味道請問該向何單位檢舉�� ...

空氣污染!實驗~

Doris avatar
By Doris
at 2006-06-12T00:00
請 問 一 下 噢 !
空 氣 污 染 的 問 題 !
要 用 什 麼 實 驗 , 才 知 道 空 氣 已 經 污 染 惹呢!例 如 ...

有關空氣污染的問題急需拜託十五點

Isla avatar
By Isla
at 2006-06-10T00:00
1.空氣污染的簡介 [ 不超過 A4 一頁]
2.空氣污染的測量方法 [ 是大家所可用的]
3.如何改善空氣污染,愈多愈好[用條列式方法回答]