Metal removal via particulate material in a lowland river system.

Twelve month surveys of acid-soluble and dissolved trace metal concentrations in the lower Waikato River (in 1998/9 and 2005/6) showed abnormally low particulate Fe, Mn, Cu, Pb and Zn concentrations and mass flux in autumn, when the suspended particulate material (SPM) had a relatively high diatom and organic carbon content, and low Fe and Al content. Dissolved Mn, Cu and Zn concentrations also decreased in autumn, while dissolved Fe and Pb concentrations were unaffected. While SPM settlement under the low river flow conditions present in autumn can explain the removal of particulate metals, it does not explain dissolved metal removal.

Comparison of cell culture with an amplified enzyme immunoassay for diagnosing genital herpes simplex infection.

An amplified enzyme immunoassay (EIA) for herpes simplex virus (Novo Nordisk) was compared with cell culture in 853 genital specimens from a genito-urinary medicine clinic. The sensitivity of the EIA was 86% and its specificity 99.6%.