Abstract: A method and apparatus are provided for detecting contaminants, such as ethylene glycol and diethylene glycol, in various materials, including household products, and medicines. The contaminants can be detected using enzyme assays that produce measurable changes in light absorption and/or light fluorescence.

Abstract: A barbeque grill brush including a handle with the head portion attached thereto, multiple metal bristles embedded in the bottom of the head portion, a pair of spaced L-shaped arms attached to the bottom of the head portion, and an elongated bumper spaced from the head portion and end being interconnected to the L-shaped arms.

Abstract: A transient voltage suppressor may include a silicon controlled rectifier (SCR) having an anode coupled to Vcc. The SCR may include a PNP transistor (Q2) and an NPN transistor (Q3), the PNP transistor having a base in common with a collector of the NPN transistor and the PNP transistor having a collector in common with a base of the NPN transistor. The TVS may further include a Zener diode having an anode and cathode, wherein the anode is directly coupled to the base of the NPN transistor and/or the cathode is directly coupled to the base of the PNP transistor, and an additional NPN transistor (Q1). The cathode of the SCR may be directly coupled to a base of the additional NPN transistor, and a collector and emitter of the additional NPN transistor may be directly coupled in series between VCC and ground.

Abstract: The present invention provides a magnifying lamp with detection function which comprises an illuminating lamp holder, a magnifying lens, a lamp arm and a lamp body fixation means, characterized in that an ultraviolet light source is disposed inside the illuminating lamp holder, and the ultraviolet light source is connected to a power supply of the magnifying lamp and controlled by a ultraviolet light source control switch. The present invention has the following advantages: In addition to the lighting and magnifying functions, the present magnifying lamp also provides other detection functions such as counterfeit banknote detection and so forth. Besides, the present invention is simple to assemble, convenient to operate and practical.