摘要
设计并构建了一种简单方便的无栅极实时直接分析(DART)质谱进样装置,它由惰性载气、离子发生器、加热管以及温控部分等组成,该装置不含栅极,减少了结构单元,可与多种质谱仪联用。具有结构简单、易于构建、灵活、成本低的特点。使用构建的装置,考察了载气类型、载气流速以及加热带温度等实验条件的影响。选取氩气作载气,流速7.5 L/min,加热带温度为300℃,通过对苯乙醇和亚油酸溶液、敌敌畏乳剂、蚊香块和柑橘皮、以及薄层板上的盐酸普萘洛尔6种样品的分析结果,显示了该装置的实用性。
The paper presents a flexible and simple direct analysis in real-time（ DART） device without grid electrode for mass spectrometer injection. It contained inert carrier gas,ionizer,heater and temperaturecontroller etc. Excluding the grid electrode and then reducing the structure units,the device could be easy to build up in low cost and flexible to connect with a variety of mass spectrometers. The experimental conditions like the kind of carrier gas,flow rate and temperature were investigated for the device. By using argon as carrier gas,flow rate as 7. 5 L / min,and temperature of heat tape as 300 ℃,the device was used to analyze benzene alcohol,linoleic acid,dichlorvos emulsion,mosquito coils,citrus peel,and sample（ propranolol hydrochloride） on thin-layer plate combined with mass spectrometer. The results were accurate and the device was stable and reliable.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2015年第3期451-456,共6页
Chinese Journal of Analytical Chemistry
关键词
实时直接分析
装置
质谱
Direct analysis in real time
Device
Mass spectrum
