An apparatus and method for detecting an analyte of interest using paper spray mass spectrometry includes a spray material; a sample on the spray material including an enzyme of interest; a solvent to hydrate the sample, promote enzymatic activity, and extract analytes of interest from the sample; a substrate specific to the enzyme of interest, wherein any of the spray material and the solvent includes the substrate; a voltage source to apply a voltage to the spray material to create charged droplets of a mixture containing the sample; and a mass spectrometer to perform spectrometry on the droplets to perform any of: identify the analytes of interest in the sample; and measure a level of inhibition in any enzymes contained in the sample.
一种利用纸喷雾质谱法检测感兴趣的分析物的装置和方法包括:喷雾材料;喷雾材料上的样品,包括感兴趣的酶;溶剂,使样品
水合,促进酶的活性,并从样品中提取感兴趣的分析物;与感兴趣的酶特异的底物,其中喷雾材料和溶剂中的任何一种都包括该底物;电压源,用于向喷雾材料施加电压,以产生含有样品的混合物的带电液滴;以及质谱仪,用于对液滴进行光谱分析,以执行以下任一操作:确定样品中感兴趣的分析物;以及测量样品中所含酶的抑制
水平。