ScienceDaily (Oct. 16, 2007) — Amid growing concerns about sports "doping," researchers in Indiana and China report development of a faster and more efficient method for detecting the presence of illegal anabolic steroids in urine.

Their new method, which takes only a few seconds and involves no time-consuming sample preparation, will be described in Analytical Chemistry.

The study notes that use of banned substances by professional athletes to build muscle and gain a competitive advantage is a growing problem in sports such as track and field, baseball, football and cycling. Although effective methods exist for detecting the presence of illegal steroids in urine, current methods are time-consuming and involve cumbersome preparation steps.

Zheng Ouyang, R. Graham Cooks, and colleagues developed a new steroid-testing method that combines two state-of-the-art testing techniques called desorption electrospray ionization (DESI) and tandem mass spectrometry. In laboratory studies, the researchers used it to analyze fresh urine samples for the presence of tiny amounts of seven different anabolic steroids. The new method accurately identified the steroids in only a few seconds using only a single drop of urine, they say.

Reference: "Rapid Screening of Anabolic Steroids in Urine by Reactive Desorption Electrospray Ionization" Analytical Chemistry, November 1, 2007.

更快，更有效的方法檢測尿中非法類固醇

ScienceDaily（10月16日） -一片越來越關注體育“興奮劑”，研究人員在印第安納州和中國發展的報告，更快，更有效的方法檢測是否存在非法合成類固醇，尿。

他們的新方法，該方法只需幾秒鐘，不涉及費時的樣品製備，將介紹在分析化學。

研究報告指出，使用違禁藥物專業運動員增強肌肉並獲得競爭優勢的問題日益嚴重的體育項目，如田徑，棒球，足球和自行車。儘管存在著有效的方法檢測是否存在非法類固醇的尿液，當前的方法費時，涉及繁瑣的準備步驟。

鄭歐陽河格雷厄姆廚師，和同事開發出一種新的類固醇測試方法，結合兩個州的最先進的檢測技術稱為解吸電噴霧電離（柴電潛艇）和串聯質譜法。在實驗室研究中，研究人員用它來分析新鮮尿液樣本為微量的存在7種不同的合成代謝類固醇。這種新方法準確地確定了類固醇的只有幾秒鐘只使用一個單一的一滴尿，他們說。

參考：“快速篩選的同化類固醇尿中解吸電噴霧反應”分析化學，2007年11月1日。