Mass-spectrometer systems and methods
First Claim
1. A system for determining the concentration of an analyte of interest in a bodily fluid, the system comprising:
- a fluid pumping system comprising at least one positive pressure pump;
a sample preparation portion comprising a single-use, disposable cartridge comprising;
a solid residue of a plurality of internal standards within a sample introduction port, the plurality of internal standards comprising a plurality of stable isotopes of the analyte of interest or a plurality of chemically derivatized analyte samples, each of the plurality of internal standards being at different, known concentrations;
a filtration region;
a chromatography region; and
an outlet port configured to be in fluid communication with a mass spectrometer;
a sample analysis portion comprising the mass spectrometer, wherein the mass spectrometer produces a spectra for the analyte of interest in a sample of a bodily fluid, and at least one of the plurality of internal standards in a single spectral measurement; and
at least one processor having operational thereon computer instructions for at least controlling operation of the system, creating a standard curve of the spectra, and determining a concentration of the analyte of interest contained in the bodily fluid sample based upon the standard curve, and reporting the at least one analyte concentration.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the present disclosure present novel systems, devices and methods for an automated biological sample analysis using mass-spectrometry. The time from sample introduction to the reporting of data, in some embodiments, takes a relatively short amount of time (e.g., several minutes). In some embodiments, a biological sample to be analyzed is a blood sample. For many applications, only a single drop of blood may be sufficient. Through the use of a mixture of standards with unique molecular mass, a quantitative analysis of the target analyte can be performed in a single MS run (for example), eliminating the need to create and analyze standard curves. One advantage of such embodiments may be that the system, devices, and methods can eliminate the need for batch creation since the requirement to amortize the time and effort of creating and analyzing standard curves can be eliminated.
27 Citations
20 Claims
-
1. A system for determining the concentration of an analyte of interest in a bodily fluid, the system comprising:
-
a fluid pumping system comprising at least one positive pressure pump; a sample preparation portion comprising a single-use, disposable cartridge comprising; a solid residue of a plurality of internal standards within a sample introduction port, the plurality of internal standards comprising a plurality of stable isotopes of the analyte of interest or a plurality of chemically derivatized analyte samples, each of the plurality of internal standards being at different, known concentrations; a filtration region; a chromatography region; and an outlet port configured to be in fluid communication with a mass spectrometer; a sample analysis portion comprising the mass spectrometer, wherein the mass spectrometer produces a spectra for the analyte of interest in a sample of a bodily fluid, and at least one of the plurality of internal standards in a single spectral measurement; and at least one processor having operational thereon computer instructions for at least controlling operation of the system, creating a standard curve of the spectra, and determining a concentration of the analyte of interest contained in the bodily fluid sample based upon the standard curve, and reporting the at least one analyte concentration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification