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. The capture and separation components, along with cannabinoid analysis standards, may be configured as part of a single-use, field-replaceable testing cartridge.
提供了用于确定呼出的人体口气中一种或多种
大麻化合物含量的手持设备的各种实施例;某些实施例还可确定呼出的口气中的
酒精含量。该设备可执行以下任何步骤:捕获、浓缩、分离、识别和量化呼出的人体口气中的
大麻素含量。该装置可使用溶剂萃取和
液相色谱法浓缩
大麻素并将其从呼气污染物中分离出来,然后用荧光指示剂对
大麻素进行选择性
化学修饰以进行量化。测量方法还可包括使用已知
大麻素标准品对设备和检测协议进行实时校准,同时分析未知标准品,以量化从呼气样本中捕获的
大麻素含量。捕获和分离组件以及
大麻素分析标准可以配置为一次性使用、可现场更换的检测盒的一部分。