Abstract: This invention relates to a power source apparatus using piezoelectric elements. A conventional power source apparatus using the piezoelectric element has an ability of generating less electricity, and therefore, has been applicable only to equipment which operates with low power consumption. To solve the problems of the conventional power source apparatus, the inventor has devised a “power source apparatus” and disclosed in Japanese Utility Model Registration No. 3074105. However, the devised power generating device has the Zener diode used as the trigger circuit determining the quantity of the charged electricity. Therefore, it is necessary to operate the trigger circuit all the time, consequently to use too much electricity to operate. The electrical power consumption therefor is unignorable compared with the electric energy generated by the piezoelectric element.

Abstract: Novel packing materials are provided for liquid chromatography and/or solid phase extraction columns which will allow direct injection of biological fluids. These packing materials have a hydrophilic exterior layer and a hydrophobic, charged or otherwise selective portion that forms an underlayer or is embedded in the hydrophilic layer. During a chromatographic process large water soluble biopolymers will be in contact with the hydrophilic outer layer and be shielded from interacting with the underlayer or embedded portion and elute unretained. Small analytes, on the other hand, can be fully partitioned throughout the exterior and interior layers and are retained by hydrophobic or electrostatic interactions. Using such packings the direct analyses of plasma or serum for drug analysis is demonstrated.

Abstract: A flea eradicator consists essentialy of 1.7 percent by weight dioctyl sodium sulfosuccinate and 0.3 percent by weight sodium benzoate in water. The composition is topically applied and kills fleas substantially more quickly than do conventional flea soaps. The use of dioctyl sodium sulfosuccinate avoids thre problems of malodorous soaps, toxic insecticides and alkalin harshness usually associated with flea soaps. The need to incorporate polyethylene glycol or lanolin in the flea eradicator is thereby eliminated, as is the need for any other toxic insecticide. The use of sodium benzoate appears to promote healing of the infested area.