Probe for extraction of molecules of interest from a sample
First Claim
1. A device for generating ionized molecules for analysis in a mass spectrometer, the device comprising:
- a mesh substrate coated with an extraction phase of substantially uniform thickness that is from about 0.2 μ
m to about 50 μ
m, the extraction phase comprising;
a polymer that absorbs a molecule of interest from a matrix, ora polymer and solid phase microextraction (SPME) particles having pores dimensioned to adsorb a molecule of interest from a matrix,wherein the coated mesh substrate has a sufficiently open structure to allow fluid to flow through the coated mesh substrate; and
a solid substrate connected to the mesh substrate to provide stability to the coated mesh substrate.
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Abstract
The present disclosure describes a device for generating ionized molecules for analysis in a mass spectrometer. The device includes: a mesh substrate coated with an extraction phase, the extraction phase comprising a polymer that absorbs a molecule of interest from a matrix, or a polymer and solid phase microextraction (SPME) particles having pores dimensioned to absorb a molecule of interest from a matrix, where the mesh substrate has a sufficiently open structure to allow fluid to flow through the mesh substrate; and a solid substrate connected to the mesh substrate to provide stability to the coated mesh substrate. Mass spectrometry systems that include such a device are also described. Methods of analyzing an analyte previously extracted from a matrix onto the device are also described.
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Citations
21 Claims
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1. A device for generating ionized molecules for analysis in a mass spectrometer, the device comprising:
-
a mesh substrate coated with an extraction phase of substantially uniform thickness that is from about 0.2 μ
m to about 50 μ
m, the extraction phase comprising;a polymer that absorbs a molecule of interest from a matrix, or a polymer and solid phase microextraction (SPME) particles having pores dimensioned to adsorb a molecule of interest from a matrix, wherein the coated mesh substrate has a sufficiently open structure to allow fluid to flow through the coated mesh substrate; and a solid substrate connected to the mesh substrate to provide stability to the coated mesh substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification