Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Autarkic desorption electrospray ionization source for on-site analysis of consumer goods.
Analyst ( IF 3.6 ) Pub Date : 2020-07-01 , DOI: 10.1039/d0an00713g Florian Lotz 1 , Stefanie Gerbig , Christian Lotze , Bernhard Spengler , Sabine Schulz
Analyst ( IF 3.6 ) Pub Date : 2020-07-01 , DOI: 10.1039/d0an00713g Florian Lotz 1 , Stefanie Gerbig , Christian Lotze , Bernhard Spengler , Sabine Schulz
Affiliation
|
A general-purpose desorption electrospray ionization (DESI) source is presented which is not bound to the laboratory site. It allows autarkic operation for a few hours and can be connected to different types of (autarkic or non-autarkic) mass spectrometers via an atmospheric-pressure interface. Technical characteristics are described as well as results from direct surface analysis of consumer goods such as plastics, fruit peels or pills, or from living objects such as human skin, demonstrating the detection of various target compounds such as plasticizers, pesticides, drugs or sun blockers. Quantitative analysis is demonstrated for phthalates in plastics. The geometry of the sample, the sample table and the sprayer were modified and characterized for optimization of the method. The autarkic ion source has a total size of 48.4 × 27.0 × 18.0 cm (l × w × h) and a total mass of 7 kg. The source delivers 5.5 bar pressurized air and an adjustable solvent flow rate down to 1.5 μl min−1 for the DESI sprayer. A rechargeable 25.6 V battery allows autarkic runtimes of more than 3.5 hours. Source optimization and characterization was done on an orbital trapping mass spectrometer. Connected to a portable mass spectrometer, the developed device makes DESI suitable for on-site analyses in e.g. consumer protection, border control or homeland security.
中文翻译：
自给自足的解吸电喷雾电离源，用于消费品的现场分析。
提出了一种通用的解吸电喷雾电离（DESI）源，该源未绑定到实验室现场。它允许自给自足的操作的几个小时，并且可以连接到不同类型（自给自足或非自给自足）质谱仪的经由大气压界面。描述了技术特征以及对消费品（例如塑料，果皮或药丸）进行直接表面分析或从诸如人体皮肤等生物物体进行的表面分析结果，这些结果证明了对各种目标化合物（如增塑剂，农药，药物或防晒剂）的检测。对塑料中的邻苯二甲酸酯进行了定量分析。修改了样品的几何形状，样品台和喷雾器，并对其进行了表征，以优化方法。自给自足离子源的总尺寸为48.4×27.0×18.0 cm（l × w × h），总质量为7 kg。源提供5.5 bar的压缩空气和低至1.5μlmin -1的可调溶剂流速用于DESI喷雾器。可充电的25.6 V电池可使自给自足的运行时间超过3.5小时。源优化和表征是在轨道阱质谱仪上完成的。与便携式质谱仪连接后，开发的设备使DESI适用于现场分析，例如消费者保护，边境管制或国土安全。
更新日期：2020-08-10
中文翻译：
自给自足的解吸电喷雾电离源，用于消费品的现场分析。
提出了一种通用的解吸电喷雾电离（DESI）源，该源未绑定到实验室现场。它允许自给自足的操作的几个小时，并且可以连接到不同类型（自给自足或非自给自足）质谱仪的经由大气压界面。描述了技术特征以及对消费品（例如塑料，果皮或药丸）进行直接表面分析或从诸如人体皮肤等生物物体进行的表面分析结果，这些结果证明了对各种目标化合物（如增塑剂，农药，药物或防晒剂）的检测。对塑料中的邻苯二甲酸酯进行了定量分析。修改了样品的几何形状，样品台和喷雾器，并对其进行了表征，以优化方法。自给自足离子源的总尺寸为48.4×27.0×18.0 cm（l × w × h），总质量为7 kg。源提供5.5 bar的压缩空气和低至1.5μlmin -1的可调溶剂流速用于DESI喷雾器。可充电的25.6 V电池可使自给自足的运行时间超过3.5小时。源优化和表征是在轨道阱质谱仪上完成的。与便携式质谱仪连接后，开发的设备使DESI适用于现场分析，例如消费者保护，边境管制或国土安全。
京公网安备 11010802027423号