Abstract: Systems and techniques for detecting a target substance, such as THC, in a breath constituent sample are provided.

Abstract: Methods, systems and techniques for the accurate measurement breath-borne biomarkers are disclosed. Such methods, systems and techniques may be used for the purposes of detection and/or measurement in breath samples of biomarkers.

Abstract: Methods and devices for sampling, processing and identifying the presence and amount of at least two target substances in breath are provided. Systems and kits for sampling, processing and identifying the substances are also provided.

Abstract: Methods and devices for sampling, processing and identifying acute use of a substance or substances of abuse are provided. Systems and kits for sampling, processing and identifying acute use of a substance of abuse is also provided.

Abstract: Various embodiments for a hand-held device to determine a level of one or more cannabinoid compounds in exhaled human breath are provided; some embodiments may also determine a level of alcohol in the exhaled breath. The device may perform any of the following steps: capture, concentrate, separate, identify, and quantify the level of cannabinoids in the exhaled human breath. The device may use solvent extraction and liquid chromatography to concentrate and separate cannabinoids from breath contaminants, followed by selective chemical modification of the cannabinoids with a fluorescent indicator for quantification. The measurement methodology may also include real time calibration of the device and detection protocol using known cannabinoid standards, which are simultaneously analyzed along with an unknown, to quantify the level of cannabinoids captured from the breath sample.

Abstract: Chemical compositions and methods provide labeling, detection and measurement of target substances in exhaled human breath, and can be implemented in connection with a handheld device—much like a Breathalyzer portable breath testing unit for alcohol—to support rapid quantification of levels of cannabinoid compounds, such as tetrahydrocannabinol (THC), of suspected users at the roadside.

Abstract: Methods and devices for sampling, processing and identifying acute use of a substance or substances of abuse are provided. Systems and kits for sampling, processing and identifying acute use of a substance of abuse is also provided.

Abstract: Systems and techniques for detecting a target substance, such as THC, in a breath constituent sample are provided.

Abstract: Systems and techniques for detecting a target substance, such as THC, in a breath constituent sample are provided.

Abstract: Chemical compositions and methods provide labeling, detection and measurement of target substances in exhaled human breath, and can be implemented in connection with a handheld device—much like a Breathalyzer portable breath testing unit for alcohol—to support rapid quantification of levels of cannabinoid compounds, such as tetrahydrocannabinol (THC), of suspected users at the roadside.

Abstract: Various embodiments for a hand-held device to determine a level of one or more cannabinoid compounds in exhaled human breath are provided; some embodiments may also determine a level of alcohol in the exhaled breath. The device may perform any of the following steps: capture, concentrate, separate, identify, and quantify the level of cannabinoids in the exhaled human breath. The device may use solvent extraction and liquid chromatography to concentrate and separate cannabinoids from breath contaminants, followed by selective chemical modification of the cannabinoids with a fluorescent indicator for quantification. The measurement methodology may also include real time calibration of the device and detection protocol using known cannabinoid standards, which are simultaneously analyzed along with an unknown, to quantify the level of cannabinoids captured from the breath sample.

Abstract: Various embodiments for a hand-held device to determine a level of one or more cannabinoid compounds in exhaled human breath are provided; some embodiments may also determine a level of alcohol in the exhaled breath. The device may perform any of the following steps: capture, concentrate, separate, identify, and quantify the level of cannabinoids in the exhaled human breath. The device may use solvent extraction and liquid chromatography to concentrate and separate cannabinoids from breath contaminants, followed by selective chemical modification of the cannabinoids with a fluorescent indicator for quantification. The measurement methodology may also include real time calibration of the device and detection protocol using known cannabinoid standards, which are simultaneously analyzed along with an unknown, to quantify the level of cannabinoids captured from the breath sample.

Abstract: An air rinse method is disclosed that includes translating a container having an orifice past a plurality of nozzles, each of the plurality of the nozzles spaced apart approximately 2-12 inches on center and each of the plurality of nozzles directed in complementary opposition to the orifice and at an orifice entry angle (?E) of 0-40 degrees as the container translates over a respective nozzle, providing an ion air field, and directing pressurized air through the plurality of nozzles and through the ion air field so that pressurized and ionized air is directed through the orifice at the entry angle (?E) and into the container as the container translates over each of the plurality of nozzles.