Abstract: The invention is directed to novel methods of stabilizing blood compositions for use in the quality control of analytical techniques. The novel method comprises removing leucocytes from a blood composition to yield a depleted blood composition, stabilizing the leucocytes by treatment with an effective amount of a stabilizing agent comprising an aged transition metal solution, and then adding the resultant stabilized leucocytes to the depleted blood composition or a second blood component composition.

Abstract: The invention is directed to novel stabilized blood compositions and methods of stabilizing blood compositions for use in the quality control of analytical techniques. The novel blood compositions comprise leucocytes and an effective amount of an aged transition metal solution. The novel method comprises removing leucocytes from a blood composition to yield a depleted blood composition, stabilizing the leucocytes by treatment with an effective amount of a stabilizing agent comprising an aged transition metal solution, and then, adding the resultant stabilized leucocytes to the depleted blood composition or a second blood component composition.

Abstract: An aqueous liquid detergent composition especially adapted for dishwashing, comprising 5-60% by weight of an organic synthetic surfactant system of at least two surfactants, and 5-50% by weight of a citrus juice, said organic synthetic surfactant system consisting of1. from about 30-90 parts by weight of the surfactant system of a Ca-sensitive first surfactant selected from the group consisting of water-soluble C.sub.8-16 alkyl benzene sulphonates; alkane sulphonates having 8-20 carbon atoms; olefin sulphonates having from 8-20 carbon atoms; di-C.sub.8-20 -alkyl sulphosuccinates; di-C.sub.6-12 -alkyl phenol sulphosuccinates; primary and secondary alkyl sulphates having 8-20 carbon atoms; C.sub.8-20 alkyl polyethoxy sulphates having 1-25 ethoxy groups and mixtures thereof, and2.