A detection device for cannabinoid use including a base unit and a display screen disposed on the base unit. A central processing unit and a tetrahydrocannabinol testing device are disposed within the base unit. A testing slot is disposed on a bottom portion of the base unit, with a back end of the testing slot disposed within the tetrahydrocannabinol testing device. Each of a plurality of testing strips is slidably and removably disposed within the testing slot. A printer has a pair of T-shaped attachment extensions. Each of the pair of attachment extensions and a universal serial bus plug disposed on the printer simultaneously removably and slidably engages each of a pair of attachment slots and a universal serial bus port disposed on the base unit, respectively. The tetrahydrocannabinol testing device is configured to analyze and calculate the presence and amount of tetrahydrocannabinol in a person's bloodstream.

A method for determining a narcotic in a mixture comprising at least one interferant. The method comprises: (a) determining a voltage at which, in absence of the interferant, a voltammetric signal of the narcotic can be detected; (b) contacting an electrode with the mixture comprising the at least one interferant and potentially comprising the narcotic; (c) applying a pretreatment potential to the electrode for a duration of at least 5 seconds, the pretreatment potential measuring between 0.4 V and 2 V versus Ag/AgCl; (d) measuring a voltammetric response of the mixture, the measurement comprising at least the determined voltage; and (e) determining whether the narcotic is present in the mixture by analyzing whether the voltammetric signal of the narcotic, resolved from a voltammetric signal of the interferant, can be detected in the measured voltammetric response.

A method for determining a narcotic in a mixture comprising at least one interferant. The method comprises: (a) determining a voltage at which, in absence of the interferant, a voltammetric signal of the narcotic can be detected; (b) contacting an electrode with the mixture comprising the at least one interferant and potentially comprising the narcotic; (c) applying a pretreatment potential to the electrode for a duration of at least 5 seconds, the pretreatment potential measuring between 0.4 V and 2 V versus Ag/AgCl; (d) measuring a voltammetric response of the mixture, the measurement comprising at least the determined voltage; and (e) determining whether the narcotic is present in the mixture by analyzing whether the voltammetric signal of the narcotic, resolved from a voltammetric signal of the interferant, can be detected in the measured voltammetric response.

An apparatus may be configured to test a beverage, the apparatus may include but is not limited to, a food container, wherein the food container includes a material. An indicator may be combined with at least a portion of the material of the food container, wherein the indicator may be associated with a brand profile that may identify a brand of the food, wherein the indicator may visibly react when the indicator is contacted with the food to show whether the food is identified as the brand of the food, and wherein the visible reaction may be shown on at least the portion of the material of the food container via the indicator combined with at least the portion of the material of the food container.

An apparatus is configured to detect a beverage that is contaminated with a substance. The apparatus may include a testing material, wherein the testing material may comprise a cavity having a complementary shape to a molecule associated with the substance. The apparatus may include a taste substance filling the cavity, wherein the taste substance filling the cavity may bleed out into the beverage when the molecule associated with the substance in the beverage replaces the taste substance filling the cavity, wherein a taste of the beverage may change when the taste substance bleeds out into the beverage as an indicator that the substance is present in the beverage.

A system and method for a beverage container configured to test for a contaminated beverage in the beverage container comprises a base of the beverage container, an upper portion of the beverage container, and a sidewall with an inner surface and an outer surface that extends from the base to the upper portion, and a testing material. A portion of the beverage container is the testing material configured to visibly react when the portion of the beverage container is contacted with the contaminated beverage.

The present invention provides methods for detecting and quantifying metabolites in a biological sample by measuring the concentration of a test metabolite in the sample and comparing that concentration against the concentration of the reference metabolite; enabling accurate metabolite concentration measurements to determine aberrant drug usage patterns. Also disclosed is an analytical testing device and related computer-assisted products for detecting and quantifying metabolites in a biological sample efficiently and accurately.

An apparatus may be configured to test a beverage, the apparatus may include but is not limited to, a food container, wherein the food container includes a material. An indicator may be combined with at least a portion of the material of the food container, wherein the indicator may be associated with a brand profile that may identify a brand of the food, wherein the indicator may visibly react when the indicator is contacted with the food to show whether the food is identified as the brand of the food, and wherein the visible reaction may be shown on at least the portion of the material of the food container via the indicator combined with at least the portion of the material of the food container.

An apparatus is configured to detect a beverage that is contaminated with a substance. The apparatus may include a testing material, wherein the testing material may comprise a cavity having a complimentary shape to a molecule associated with the substance. The apparatus may include a taste substance filling the cavity, wherein the taste substance filling the cavity may bleed out into the beverage when the molecule associated with the substance in the beverage replaces the taste substance filling the cavity, wherein a taste of the beverage may change when the taste substance bleeds out into the beverage as an indicator that the substance is present in the beverage.

A system and method for a beverage container configured to test for a contaminated beverage in the beverage container comprises a base of the beverage container, an upper portion of the beverage container, and a sidewall with an inner surface and an outer surface that extends from the base to the upper portion, and a testing material. A portion of the beverage container is the testing material configured to visibly react when the portion of the beverage container is contacted with the contaminated beverage.