Ion chromatographic determination of nitrate and nitrite in meat products.

Nitrate and nitrite are usually added to processed meat products to provide protection against microorganisms that cause food poisoning. Nitrite may react with secondary amines to form nitrosoamines, a class of carcinogens. Nitrate, although it is more stable than nitrite, can act as a reservoir for nitrite.

Improvements in amperometric detection of sulfite in food matrixes.

Sulfite is added to foods as an antimicrobial, antibrowning agent, or antioxidant. It also can occur naturally, and is often used in the production of beer and wine. For years the standard methodology for determination of sulfite in foods has been the Monier-Williams method, which is a combination of acid distillation and titration.

Simultaneous laceration of the median and ulnar nerves with flexor tendons at the wrist.

Simultaneous laceration of both major nerves with flexor tendons at the wrist is a combination injury familiar to any hand surgeon, which has received scant attention in the English-language literature. The causes and pattern of injury in twenty-six patients treated for this condition over a 10-year period were reviewed. Intensive reassessment of eight of these patients revealed good restoration of hand mobility and strength from the repair of tendons, but the results of nerve repair were less reliable.

Loreto House: a pattern of care.

This short article is primarily concerned with, what the authors consider to be, two important considerations in any form of residential child care, particularly long-term: 1 The great need for a coherent overall philosophy, which is clearly understood by all members of staff. It is felt that, all too often, assumptions are made about general agreement, which are not necessarily borne out by observed practice. 2 The need for the meticulous selection of primary caring staff, followed by relevant in-service training rather than an overreliance upon, what are sometimes, quite arbitrary qualifications.