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1. 发明申请

US20230138563A1 METHODS FOR QUANTIFICATION OF COMPOUNDS IN CULTIVARS OF Cannabis sp. 有权
公开(公告)号：US20230138563A1
公开(公告)日：2023-05-04
申请号：US17918437
申请日：2021-04-14
申请人： MEDLEAF BIOTECHNOLOGIES AND GLOBAL RESEARCH AND DEVELOPMENT INC.
发明人： DAVID NOSHAD , PAUL LI , ABDUL QUDEER
IPC分类号： G01N30/72 , G01N21/64 , G01N33/50 , G01N33/94
摘要： The disclosure provides a method for analyzing compounds extracted from Cannabis. The method comprises extracting cannabinoids or terpenes from a sample using a C1-C4 alcohol or C5-C8 solvent as an extraction solvent to produce a supernatant, drying the supernatant to produce a dried extract, and dissolving the dried extract in a second C1-C4 alcohol or C5-C8 solvent, separating the cannabinoids or terpenes by gas chromatography using a capillary column with hydrogen as a carrier gas; and detecting the cannabinoids or terpenes using a mass spectrometer. The disclosure also provides a method of determining an effect of one or more Cannabis-derived compounds on intracellular calcium concentration in a cell using a microfluidic device.

2. 发明申请

US20230134726A1 MASS SPECTROMETERY CALIBRANT LIQUID CONTAINER LEVEL SENSING 有权
公开(公告)号：US20230134726A1
公开(公告)日：2023-05-04
申请号：US17519416
申请日：2021-11-04
申请人： Thermo Finnigan LLC
发明人： Raman Mathur , Thi Le , David E. Minkler
IPC分类号： G01N30/72 , H01J49/04
摘要： Determining a level of a liquid in a container is described. In one aspect, a container includes a calibrant liquid used for calibrating a mass spectrometer. A conductive layer is placed to float upon the calibrant liquid, and a circuit board with electrodes is arranged around the container. A controller circuit then drives and measures various electrodes to first identify which two electrodes the level of the calibrant liquid is between, and then subsequently identify a more precise location for the level between the two electrodes.

3. 发明授权

US11635407B2 Pressure driven fluidic injection for chemical separations 有权
公开(公告)号：US11635407B2
公开(公告)日：2023-04-25
申请号：US16983265
申请日：2020-08-03
申请人： The University of North Carolina at Chapel Hill
发明人： John Scott Mellors , Erin Anne Redman , John Michael Ramsey
IPC分类号： G01N27/447 , H01J49/16 , G01N30/16 , B01L3/00 , G01N30/72 , B05B5/00
摘要： Methods, systems and devices that allow independently applied pressures to a BGE reservoir and a sample reservoir for pressure-driven injection that can inject a discrete sample plug into a separation channel that does not require voltage applied to the sample reservoir and can allow for in-channel focusing methods to be used. The methods, systems and devices are particularly suitable for use with a mass spectrometer.

4. 发明授权

US11629216B2 Polyhydric phenol resin, glycidyl ether of polyhydric phenol resin, and uses thereof 有权
公开(公告)号：US11629216B2
公开(公告)日：2023-04-18
申请号：US17577517
申请日：2022-01-18
申请人： CHANG CHUN PLASTICS CO., LTD.
发明人： Chian Wen Hong , Sung-Kuang Chung , An-Pang Tu
IPC分类号： C08G8/12 , B32B15/20 , C08G59/06 , C08G59/40 , B32B5/02 , B32B5/26 , B32B15/14 , B01J20/281 , G01N30/72 , G01N30/74 , G01N30/02
摘要： A polyhydric phenol resin is provided. The polyhydric phenol resin comprises a polyhydric phenol resin component and a first component. When the polyhydric phenol resin is characterized in a high-performance liquid chromatography (HPLC), the first component is eluted at a retention time ranging from 27.1 minutes to 28.0 minutes, and based on the total area of the chromatographic peaks of the polyhydric phenol resin, the area percentage of the chromatographic peak of the first component at the corresponding retention time in the spectrum ranges from 1.0% to 20%.

5. 发明授权

US11624736B1 Method for identifying whether porcine heparin is adulterated with heparin from ruminants 有权
公开(公告)号：US11624736B1
公开(公告)日：2023-04-11
申请号：US17938949
申请日：2022-09-07
申请人： Shandong University , Shandong Institute for Food and Drug Control
发明人： Lianli Chi , Deling Shi , Bin Zhang , Feng Shi , Mengmeng Li , Baojian Hang
IPC分类号： G01N30/72 , G01N30/02
摘要： The present application is related to a method for identifying whether porcine heparin is adulterated with heparin from ruminants, comprising: (1) respectively detecting the contents of trisaccharide(4S) and ΔUA2S-GlcNAc6S (ΔIA) in a sample and at least three batches of porcine heparin standards; (2) calculating a ratio of the trisaccharide(4S) to the ΔIA as well as a standard deviation (SD) of the ratio in the porcine heparin standards; when the ratio of the trisaccharide(4S) to the ΔIA in the sample exceeds a maximum value of the ratio in the porcine heparin standards+3SD, where the sample is considered to be mixed or adulterated with heparin from ruminants; wherein the detection method used is hydrophilic interaction liquid chromatography-mass spectrometry (HILIC-MS) or multiple reaction monitoring (MRM). The method can distinguish porcine heparin from ovine and bovine heparin based on the structural differences, regardless of the production process the heparin has undergone.

6. 发明授权

US11624112B2 Synthesis and use of precursors for ALD of molybdenum or tungsten containing thin films 有权
公开(公告)号：US11624112B2
公开(公告)日：2023-04-11
申请号：US17323887
申请日：2021-05-18
申请人： ASM IP Holding B.V.
发明人： Tiina McKee , Timo Hatanpää , Mikko Ritala , Markku Leskela
IPC分类号： C23C16/30 , H01L21/02 , C23C16/455 , C01G39/06 , G01N30/72
摘要： Processes for forming Mo and W containing thin films, such as MoS2, WS2, MoSe2, and WSe2 thin films are provided. Methods are also provided for synthesizing Mo or W beta-diketonate precursors. Additionally, methods are provided for forming 2D materials containing Mo or W.

7. 发明授权

US11609235B2 Rapid native single cell mass spectrometry 有权
公开(公告)号：US11609235B2
公开(公告)日：2023-03-21
申请号：US16685740
申请日：2019-11-15
申请人： UT-Battelle, LLC
发明人： John F. Cahill
IPC分类号： G01N33/68 , G01N30/72
摘要： A method for analyzing single cells by mass spectrometry includes the steps of providing a plurality of cells in a liquid medium and placing the cells and liquid medium in a single cell isolation and ejection system. Liquid medium containing a single cell is released from the single cell isolation and ejection system. The liquid medium and single cell are captured in a capture probe containing a flowing capture probe solvent. The cell is lysed by a lysis inducer in the capture probe to disperse single cell components into the medium. The lysed single cell components are transported to a mass spectrometer, where the lysed single cell components entering the mass spectrometer are spatially and temporally separated from any dispersed components of another single cell from the sample entering the mass spectrometer. Mass spectrometry is conducted on the lysed single-cell components. A system for analyzing single cells by mass spectrometry is also disclosed.

8. 发明授权

US11604196B2 Isotyping immunoglobulins using accurate molecular mass 有权
公开(公告)号：US11604196B2
公开(公告)日：2023-03-14
申请号：US16930790
申请日：2020-07-16
申请人： Mayo Foundation for Medical Education and Research
发明人： David L. Murray , David R. Barnidge , Surendra Dasari , John R. Mills
IPC分类号： G01N33/68 , G01N30/72
摘要： This document relates to methods for detecting and quantifying heavy and light chains of immunoglobulin using mass spectrometry techniques.

9. 发明授权

US11597747B2 Heavy vitamin B12 derivatives 有权
公开(公告)号：US11597747B2
公开(公告)日：2023-03-07
申请号：US17128511
申请日：2020-12-21
申请人： CHARLES STURT UNIVERSITY
发明人： Peter Anderson
IPC分类号： C07H23/00 , G01N33/82 , G01N30/72
摘要： The invention discussed in this application relates to vitamin B12-based compounds that are useful as quantitative standards, particularly for the assessment of vitamin B12 deficiency.

10. 发明授权

US11594404B1 Systems and methods of ion population regulation in mass spectrometry 有权
公开(公告)号：US11594404B1
公开(公告)日：2023-02-28
申请号：US17459752
申请日：2021-08-27
申请人： THERMO FINNIGAN LLC
发明人： Philip M. Remes , Jesse D. Canterbury
IPC分类号： H01J49/00 , G01N30/72
摘要： A method of performing mass spectrometry includes accumulating, over an accumulation time, ions produced from components eluting from a chromatography column and transferring the accumulated ions to a mass analyzer. During an acquisition, a mass spectrum of detected ions derived from the transferred ions is acquired. An elution profile is obtained from a series of acquired mass spectra including the acquired mass spectrum and a plurality of previously-acquired mass spectra. The elution profile includes a plurality of detection points representing intensity of the detected ions as a function of time. A current signal state of the elution profile is classified based on a subset of detection points included in the plurality of detection points. The accumulation time for a next acquisition of a mass spectrum is set based on the classified current signal state of the elution profile.

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