Abstract: A gas sampling bag for gas pH measurement includes a main sampling chamber and an electrochemical test strip accommodating chamber for accommodating an electrochemical test strip. The electrochemical test strip includes a strip body, a working electrode, a pH sensing layer, a reference electrode and a solid water absorption layer. The working electrode has a first part located in a detection area of the strip body. The pH sensing layer is formed on the first part. The reference electrode has a second part located in the detection area. The solid water absorbing layer is formed on the detection area and covers the pH sensing layer and the second part. The solid water absorbing layer is used for absorbing or adsorbing water in the gas sample to form an electrical connection between the first and second parts.

Abstract: A gas sampling bag for gas pH measurement includes a main sampling chamber and an electrochemical test strip accommodating chamber for accommodating an electrochemical test strip. The electrochemical test strip includes a strip body, a working electrode, a pH sensing layer, a reference electrode and a solid water absorption layer. The working electrode has a first part located in a detection area of the strip body. The pH sensing layer is formed on the first part. The reference electrode has a second part located in the detection area. The solid water absorbing layer is formed on the detection area and covers the pH sensing layer and the second part. The solid water absorbing layer is used for absorbing or adsorbing water in the gas sample to form an electrical connection between the first and second parts.

Abstract: An electrochemical test strip includes a strip body, a working electrode, a pH sensing layer, a reference electrode and a solid water absorption layer. The strip body has a detection area for contact with a gas sample. The working electrode is disposed on the strip body and has a first part located in the detection area. The pH sensing layer is disposed on the first part of the working electrode located in the detection area. The reference electrode is disposed on the strip body and has a second part located in the detection area. The solid water absorption layer is disposed in the detection area and covers the pH sensing layer and the second part. The solid water absorption layer is adapted to absorb or adsorb water in the gas sample in a manner that the first and second parts are electrically connected to each other.

Abstract: A method for detecting Helicobacter pylori using an electrochemical test strip, comprising the following steps: making a subject blow a gas sampling bag to obtain a first gas sample, and use an electrochemical test strip to detect the first gas sample to obtain a pH background data; the subject is allowed to consume urea; making the subject blow a gas sampling bag to obtain a second gas sample, and use an electrochemical test strip to detect the second gas sample to obtain a pH detection data; comparing the pH background data and the pH detection data to determine whether the subject's stomach is infected with Helicobacter pylori.

Abstract: A disposable self-sensing signal test strip includes a test strip body. The test strip body has a detection area and a circuit area. The detection area has a detection circuit. An electrochemical processing unit, a wireless transmission unit, and a power source unit are provided in the circuit area. The detection circuit is electrically connected to the electrochemical processing unit. The electrochemical processing unit sends to the detection circuit a control signal for performing detection. After receiving the control signal, the detection circuit reacts electrochemically with the test sample and sends a feedback signal to the electrochemical processing unit. The electrochemical processing unit converts the feedback signal into a detection parameter signal and sends the detection parameter signal through the wireless transmission unit to a receiving unit. The power source unit supplies electricity to the electrochemical processing unit and the wireless transmission unit.

Abstract: A multi-channel potentiostat is provided and includes one or more than one test dongles and a remote controller. The test dongle comprises a battery, a power switch, a detector, a processor, a memory, a controller, a detector receiving port, a first wireless transceiver, a USB connector and a USB protective cover. The remote controller comprises a plurality of USB receiving ports, a memory, a second wireless transceiver, a power switch, a power connector, a transmission port, and a battery. The test dongles execute a process of electrochemical analysis on an analyte, and transmit an analysis data to the remote controller. Afterward, the remote controller transmits the analysis data to a processing device for analysis. The multi-channel potentiostat has the advantages, for example processing analysis data at the same time, small size for easy to carry and making the detection distance wider by the wireless transmission.

Abstract: Provided is an operation method of an electrochemical analyzer, comprising the following steps: preparing a computer including a processor and a memory, and configure an online electrochemical analysis setting process by the computer; configuring a conversion formula and a reaction temperature correction formula, convert an initial test data of an analyte and a corresponding electrochemical analysis method to a test result of the analyte; burning the settings processed in a process editing program into a portable chip; connecting the portable chip to the electrochemical analyzer, disconnect the electrochemical analyzer from the computer, receive a sample through an analysis chip, perform an offline electrochemical analyzing process by the electrochemical analyzer to conduct electrochemical analysis to the sample, and display the test result of the sample on a display unit of the electrochemical analyzer.

Abstract: A photoelectrocatalytic method for detecting current that illuminates a photoelectrochemical electrode to generate a photocurrent and to magnify the current. Thereby, accuracy of the detection is increased. A photoelectrochemical detector used in the method has a base (10), a cover (20) pivotally mounted on the base (10) and a locking device attached between the base (10) and the cover (20). The base (10) has a top and a recess (12) defined in the top to accommodate a working electrode (50) with a photoelectrochemical inner lead (52). A spacer is clamped between the base (10) and the cover (20) to form a space over the inner lead (52). Multiple channels and a light hole (22) are defined through the cover (20) to communicate with the space. Therefore, the inner lead is illuminated through the light hole (22) to perform the photoelectrochemical method.

Abstract: A flow injection electrochemical detecting device has a base (10), a cover pivotally mounted on the base (10), and a locking device attached between the base (10) and the cover (20). The base (10) has a recess (12) defined in a top to accommodate a working electrode inside the recess (12). An annular trench (28) in a bottom partially receives an O-ring (282) serving as a separator to form a space between the base (10) and the cover (20). Multiple channels are defined through the cover (20) to communicate with the space. Therefore, a flow injection electrochemical detecting device is achieved. By pivotally attaching the cover (20) on the base (10) and using the locking device, the detecting device is easily opened or closed to change the working electrode (50) in a convenient way.

Abstract: A photoelectrocatalytic method for detecting current that illuminates a photoelectrochemical electrode to generate a photocurrent and to magnify the current. Thereby, accuracy of the detection is increased. A photoelectrochemical detector used in the method has a base (10), a cover (20) pivotally mounted on the base (10) and a locking device attached between the base (10) and the cover (20). The base (10) has a top and a recess (12) defined in the top to accommodate a working electrode (50) with a photoelectrochemical inner lead (52). A spacer is clamped between the base (10) and the cover (20) to form a space over the inner lead (52). Multiple channels and a light hole (22) are defined through the cover (20) to communicate with the space. Therefore, the inner lead is illuminated through the light hole (22) to perform the photoelectrochemical method.

Abstract: A flow injection electrochemical detecting device has a base (10), a cover pivotally mounted on the base (10), and a locking device attached between the base (10) and the cover (20). The base (10) has a recess (12) defined in a top to accommodate a working electrode inside the recess (12). An annular trench (28) in a bottom partially receives an O-ring (282) serving as a separator to form a space between the base (10) and the cover (20). Multiple channels are defined through the cover (20) to communicate with the space. Therefore, a flow injection electrochemical detecting device is achieved. By pivotally attaching the cover (20) on the base (10) and using the locking device, the detecting device is easily opened or closed to change the working electrode (50) in a convenient way.