Carrier-Based Ion-Selective Electrodes and Bulk Optodes. 1. General Characteristics.

Chromium occurrence in the environment and methods of its speciation.

This book is one of our contemporary medical bibles. It needs no introduction; those who have frequent need of it know it very well, and those who use it less often seek it out on the library shelf when problems arise. The book is truly encyclopedic. Everything relevant discovered during the six-year intervals between publication finds its way into these pages. By today's standards, its 1,778 closely packed small-print pages are a bargain. The mutant gene is both hero and villain in this book. It is reponsible for the biochemical abnormality that results in disease, no matter how rare a given abnormality may be. By the same token, however, it is truly an experiment of nature, shedding light on fundamental metabolic sequences and biologic mechanisms. This volume, more than most, explains the contributions of the laboratory to clinical medicine. Each chapter seems to have been rewritten, so that the exciting

The Metabolic Basis Of Inherited Disease.

The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for their effects on a variety of chemical, and preferably, biochemical systems.

High throughput screening assay systems in microscale fluidic devices

Temporal evolution of groundwater composition in an alluvial aquifer (Pisuerga river, Spain) by Principal Component Analysis.

Determination of selectivity coefficients of ion-selective electrodes by a matched-potential method

Analysis of multicomponent fluorescence data

Application of the method of rank annihilation to fluorescent multicomponent mixtures of polynuclear aromatic hydrocarbons

Les limites de detection simultanee de plusieurs elements sont 20 fois meilleures que celles obtenues par les systemes d'aspiration classique en continu pour Ba, Be, Cd, Co, Cu, Mn, N et Pb

Sensitivity enhancements for flow injection analysis-inductively coupled plasma atomic emission spectrometry using an on-line preconcentrating ion-exchange column

Fibre optic sensing is a growing technology in analytical chemistry. Scattering, absorbance, reflectance and luminescence spectroscopic measurements have been made using fibre waveguides. Fluorescence is particularly suited for use in fibre sensing because of its sensitivity and versatility, and the ease with which this type of measurement may be implemented with a single fibre optic.The probe configuration used in this study for pH measurement consists of fluorescein isothiocyanate (FITC) covalently bonded to a porous glass bead. This bead is attached to a single, multi-mode optical fibre, which conducts both the excitation and emission radiations. The increase in fluorescence intensity, as the acid form of the immobilised FITC is converted to its basic form, is related to the pH. The dynamic range of this miniature probe is pH 3–7 and this can be extended by decreasing the dye loading. The response time is between 20 and 35 s, depending on the capacity.

Gary D. Christian

Papers

Determination of selectivity coefficients of ion-selective electrodes by a matched-potential method

Analysis of multicomponent fluorescence data

Application of the method of rank annihilation to fluorescent multicomponent mixtures of polynuclear aromatic hydrocarbons

Sensitivity enhancements for flow injection analysis-inductively coupled plasma atomic emission spectrometry using an on-line preconcentrating ion-exchange column

Single fibre optic fluorescence pH probe