Mobile devices for chemical analysis and related methods

A mobile chemical sensor device comprising:

• a housing including a cartridge opening;
• a cartridge configured to position at least one chemical sensor probe having a sensor-bearing surface that includes an array of luminescent chemical sensors, wherein the cartridge forms a light sealed enclosure in an interior of the housing when the cartridge is inserted in the cartridge opening;
• at least one light source configured to direct light onto the sensor-bearing surface of the at least one chemical sensor probe at an angle of incidence, wherein the light source is capable of emitting light having a wavelength of from about 280 nm to about 400 nm;
• a camera module mounted in the light sealed enclosure and configured to detect emitted light from the at least one chemical sensor probe;
• an optical mirror configured to reflect emitted light from the at least one chemical sensor probe to the camera module;
• and
• a single-board computer or a multi-board computer mounted in the light sealed enclosure;
• a printed circuit board assembly (PCBA) mounted in the light sealed enclosure and connected to the single-board computer or multi-board computer;
• and
• a light source board mounted in an adjustable position on the PCBA,
• wherein the at least one light source is mounted on the light source board, and wherein the light source board is configured to adjust the angle of incidence between the at least one light source and the sensor-bearing surface of the chemical sensor probe.

A mobile chemical sensor device comprising:

• a housing including a cartridge opening;
• a cartridge configured to position at least one chemical sensor probe having a sensor-bearing surface that includes an array of luminescent chemical sensors, wherein the cartridge forms a light sealed enclosure in an interior of the housing when the cartridge is inserted in the cartridge opening;
• at least one light source configured to direct light onto the sensor-bearing surface of the at least one chemical sensor probe at an angle of incidence, wherein the light source is capable of emitting light having a wavelength of from about 280 nm to about 400 nm;
• and
• a camera module mounted in the light sealed enclosure and configured to detect emitted light from the at least one chemical sensor probe,
• wherein the housing has a housing height of about 3 cm to about 7 cm, a housing width of from about 7 cm to about 11 cm, and a housing length of from about 10 cm to about 20 cm;
• or
• wherein the mobile chemical sensor device has a weight of from about 45 grams to about 12,000 grams;
• or
• wherein a tag reader sensor is mounted in an interior of the housing, wherein the tag reader sensor is configured to read an optical tag or a radio frequency identification (RFID) tag located on one or more of the chemical sensor probes;
• or
• wherein at least one of the housing and the light sealed enclosure include a gas intake and a gas exhaust, and wherein the gas intake and the gas exhaust are configured to allow a sample gas to flow across the sensor-bearing surface of the at least one chemical sensor probe.

A mobile chemical sensor device comprising:

• a housing including a cartridge opening;
• a cartridge configured to position at least one chemical sensor probe having a sensor-bearing surface that includes an array of luminescent chemical sensors, wherein the cartridge forms a light sealed enclosure in an interior of the housing when the cartridge is inserted in the cartridge opening;
• at least one light source configured to direct light onto the sensor-bearing surface of the at least one chemical sensor probe at an angle of incidence, wherein the light source is capable of emitting light having a wavelength of from about 280 nm to about 400 nm;
• and
• a camera module mounted in the light sealed enclosure and configured to detect emitted light from the at least one chemical sensor probe,
• an optical mirror configured to reflect emitted light from the at least one chemical sensor probe to the camera module;
• and
• a single-board computer or a multi-board computer mounted in the light sealed enclosure;
• and
• wherein the chemical sensor device is operated by a computer readable code included in the single-board or the multi-board computer, and the computer readable code is configured to receive and process at least one digital signal from the camera module,
• wherein the at least one digital signal includes a plurality of RGB values derived from the emitted light from the at least one chemical sensor probe, a plurality of XYZ values derived from the plurality of RGB values, a plurality of xy values derived from the plurality of XYZ values, a data packet including one or more of a time, a date, a user name, a test name, a sample name;
• or combinations thereof;
• or
• wherein the computer readable code includes a mandatory sequence of test protocol steps including at least one of a baseline reading step, a control reading step, and a sample reading step;
• or
• wherein the at least one digital signal includes an image file.

A method of analyzing a chemical composition comprising:

• providing a mobile chemical sensor device and a chemical sensor probe, wherein the chemical sensor probe includes an array of luminescent chemical sensors on a sensor-bearing surface;
• contacting the chemical sensor probe with a chemical composition for a test duration;
• inserting a cartridge holding the chemical sensor probe into the mobile chemical sensor device;
• exposing the chemical sensor probe to a test range of light;
• and
• detecting a color and an intensity of luminescence of the array of luminescent chemical sensors,
• wherein the mobile chemical sensor device includes
• a housing including a cartridge opening configured to position the cartridge holding the chemical sensor probe, wherein the cartridge forms a light sealed enclosure in an interior of the housing when the cartridge is inserted in the cartridge opening;
• at least one light source configured to direct light onto the sensor-bearing surface of the chemical sensor probe at an angle of incidence, wherein the light source is capable of emitting light having a wavelength of from about 280 nm to about 400 nm;
• and
• a camera module mounted in the light sealed enclosure and configured to detect emitted light from the chemical sensor probe,
• identifying an identification code of the chemical sensor probe by scanning an optical tag or a radio frequency tag mounted on the chemical sensor probe;
• matching the identification code to an eligible identification code in a database;
• measuring emitted light from the array of luminescent chemical sensors in a baseline reading step, providing baseline data from the chemical sensor probe and forming a pre-scanned chemical sensor probe;
• identifying the identification code of the pre-scanned chemical sensor probe by scanning the optical tag or the radio frequency tag mounted on the pre-scanned chemical sensor probe;
• matching the identification code to an eligible identification code of a pre-scanned chemical sensor probe in the database;
• and
• measuring emitted light from the array of luminescent chemical sensors in a test reading step, providing test data from the pre-scanned chemical sensor probe.