# US 2019/0317060 A1 · Method, system, and apparatus for gas chromatography device with pre-charged large volume to small volume injection module

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- Number: US 2019/0317060 A1
- Document ID: US20190317060A1
- Status: Published application
- Kind: A1
- Application number: 16/368,383
- Filed: 2019-03-28
- Published: 2019-10-17
- Earliest claimed: 2018-04-12
- Assignees: Vorga Corp.
- Applicants: Vorga Corp.
- Inventors: Cathie Condron; Justin Chen
- Web page: https://patentgrep.com/patent/US20190317060A1

## CPC

- G01N 30/16: Injection (G01N30/24 takes precedence)
- G01N 30/14: by elimination of some components
- G01N 30/8675: {Evaluation, i.e. decoding of the signal into analytical information (for analysis of specific compounds see also G01N30/88 and subgroups of G01N33/00; chemical libraries per se C40B)}
- G01N 2030/025: {Gas chromatography}
- G01N 2030/146: {using membranes}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

The present invention contemplates a variety of improved techniques including an injection module pairable with an injection port of a gas chromatography device. The injection module can include a cylindrical body, a cap with permeable membrane, a first reservoir for a sample, and a second reservoir for a volume of solvent. An internal membrane can be disposed between the first reservoir and the second reservoir. The injection module can include a circular plunger creating a seal with an inner surface of the cylindrical body of the injection module and configured to expel the sample and solvent by gliding along the inner surface of the cylindrical body. A server can monitor analytes detected by the gas chromatography device and generate recommendations for a user of the gas chromatography device.

## Claims

### Claim 1

An injection module to increase an accuracy of a gas chromatography device, the injection module comprising:
a cylindrical outer structural framework arranged to couple with an injection port of the gas chromatography device;
an internal membrane disposed within the injection module and defining a first reservoir to receive a sample, and a second reservoir to receive a solvent to dissolve the sample, the solvent to clean the injection port, thereby reducing contamination of the sample increasing the accuracy of the gas chromatography device;
a plunger to push at least a portion of the sample and a portion of the solvent into the gas chromatography device, the plunger to operate within the second reservoir and prevented by the internal membrane from coming into contact with the sample, thereby reducing the contamination of the sample and increasing the accuracy of the gas chromatography device;
a cap to close the first reservoir and to prevent the sample from leaving the first reservoir, thereby reducing loss of the sample and increasing the accuracy of the gas chromatography device;
a line associated with the first reservoir to indicate an amount of the sample placed within the first reservoir, thereby increasing the accuracy of the gas chromatography device; and
a scale disposed within the first reservoir, the scale to measure a weight of the sample placed within the first reservoir, thereby increasing the accuracy of the gas chromatography device.

### Claim 2

A system comprising:
an injection module to provide a sample of a material to a gas chromatography device and to reduce contamination of the sample, the injection module comprising:
an internal membrane disposed within the injection module and defining a first reservoir to receive the sample, and a second reservoir to receive a solvent to dissolve the sample; and
a plunger to push at least a portion of the sample and a portion of the solvent into the gas chromatography device, the plunger to operate within the second reservoir and prevented by the internal membrane from coming into contact with the sample, thereby reducing the contamination of the sample.

### Claim 3 (depends on 2)

The system of claim 2, the injection module comprising:
an injection port to guide the sample into the gas chromatography device; and
the solvent to dissolve the sample, the solvent to clean the injection port, thereby reducing the contamination of the sample.

### Claim 4 (depends on 2)

The system of claim 2, the injection module to increase an accuracy of the gas chromatography device by reducing loss of the sample, the injection module comprising:
a cap to close the first reservoir and to prevent the sample from leaving the first reservoir, thereby reducing the loss of the sample and increasing the accuracy of the gas chromatography device.

### Claim 5 (depends on 4)

The system of claim 4, the cap comprising a permeable or a semipermeable internal membrane.

### Claim 6 (depends on 4)

The system of claim 4, the injection module configured to receive the sample by removing the cap to expose an opening of the injection module.

### Claim 7 (depends on 2)

The system of claim 2, the injection module to increase an accuracy of the gas chromatography device by increasing reproducibility of a measurement of the gas chromatography device, the injection module comprising:
a line associated with the first reservoir to indicate an amount of the sample placed within the first reservoir, thereby increasing the accuracy of the gas chromatography device.

### Claim 8 (depends on 2)

The system of claim 2, the injection module to increase an accuracy of the gas chromatography device by increasing reproducibility of a measurement of the gas chromatography device, the injection module comprising:
a scale disposed within the first reservoir, the scale to measure a weight of the sample placed within the first reservoir, thereby increasing the accuracy of the gas chromatography device.

### Claim 9 (depends on 8)

The system of claim 8, the scale formed into a thin strip disposed within the first reservoir.

### Claim 10 (depends on 8)

The system of claim 8, comprising the scale disposed on the internal membrane.

### Claim 11 (depends on 2)

The system of claim 2, wherein the sample includes a plant product, a chemical residue, or a combination thereof.

### Claim 12 (depends on 2)

The system of claim 2, further comprising:
a tracking device comprising a barcode, a global positioning system chip, or an internet of things chip.

### Claim 13 (depends on 2)

The system of claim 2, the injection module comprising a fastener configured to couple with a fastener of an injection port of the gas chromatography device.

### Claim 14 (depends on 13)

The system of claim 13, the fastener of the injection module comprising a threaded fastener, a flange, a clamp, a retaining ring, or any combination thereof.

### Claim 15

A method comprising:
generating, by a processor, an instruction of how to tend to a plant, said generating comprising:
receiving a sample of the plant in a gas chromatography device;
generating a chromatogram by processing the sample of the plant through the gas chromatography device, the chromatogram correlating a time and a response of a detector associated with the gas chromatography device;
obtaining an identification of the plant and a reference chromatogram associated with the identification of the plant;
identifying an anomaly between the generated chromatogram and the reference chromatogram; and
based on the anomaly, generating the instruction of how to tend to the plant to correct the anomaly.

### Claim 16 (depends on 15)

The method of claim 15, said obtaining the identification of the plant comprising receiving the identification of the plant from a user.

### Claim 17 (depends on 15)

The method of claim 15, said obtaining the identification of the plant comprising:
obtaining a plurality of chromatograms associated with a plurality of plants;
determining a second chromatogram in the plurality of chromatograms having a closest match to the generated chromatogram;
obtaining an identification associated with the second chromatogram; and
providing the identification associated with the second chromatogram as the identification of the plant.

### Claim 18 (depends on 15)

The method of claim 15, said obtaining the reference chromatogram comprising:
obtaining a plurality of chromatograms associated with the plant; and
calculating an average chromatogram based on the plurality of chromatograms and an acceptable deviation from the average chromatogram, wherein the reference chromatogram comprises the average chromatogram and the acceptable deviation.

### Claim 19 (depends on 18)

The method of claim 18, said identifying the anomaly comprising:
comparing the chromatogram to the average chromatogram and the acceptable deviation; and
when a difference between the chromatogram and the average chromatogram is greater than the acceptable deviation, identifying the anomaly.

### Claim 20 (depends on 15)

The method of claim 15, said generating the instruction of how to tend to the plant comprising:
based on the identification of the plant and the anomaly, obtaining from a database the instruction of how to tend to the plant.

### Claim 21 (depends on 15)

The method of claim 15, said generating the instruction of how to tend to the plant comprising:
obtaining a plurality of environment measurements indicating a plurality of environment properties and a plurality of threshold ranges associated with the plurality of environment measurements, wherein the plurality of threshold ranges indicate a range acceptable to the plant for each environment measurement in the plurality of environment measurements; and
when an environment measurement is outside of a range associated with the environment measurement, generating the instruction to adjust an environment property associated with the environment measurement.

### Claim 22 (depends on 21)

The method of claim 21, the plurality of environment properties comprising a soil moisture, a solar irradiance, a humidity, a soil composition, a schedule of when the plant is watered, a schedule of when the plant is fertilized, a type of fertilizer, an amount of fertilizer, an air pressure, or a temperature.

### Claim 23 (depends on 15)

The method of claim 15, comprising:
analyzing a sample of a soil associated with the plant in the gas chromatography device to determine a plurality of chemical components contained in the sample of the soil; and
correlating the anomaly to a chemical component in the plurality of chemical components contained in the sample of the soil.

### Claim 24 (depends on 15)

The method of claim 15, comprising:
receiving a second sample of the plant, the second sample of the plant obtained after the instruction was executed;
analyzing the second sample of the plant; and
based on the analysis of the second sample of the plant, determining a level of success of the instruction in addressing the anomaly.
