sigmoid regions and occasionally in the caecum. It results from pressure necrosis of the colonic wall from impacted faeces. Constipation is the pre-eminent symptom in all cases and straining at stool the precipitating event. Drug-induced faecal impaction is becoming more prevalent and is not uncommon in opiate addicts. Both faecal impaction and perforation have been recently reported in renal t...

The article presents the results of research on determination mercury in fish muscles and seafood, conducted based State Research Institute for Laboratory Diagnostics Veterinary-Sanitary Examination by Atomic Absorption Spectrometry as systematic period from 2019 to 2021. Mercury content was determined atomic absorption spectrometry with direct sample injection. study carried out using a Milest...

As the electrochemical method, the Fast Fourier Transform (FFT) Stripping Cyclic Voltammetry detection method was designed for measurement and monitoring of adsorbed mercury ions by new modified adsorbent based on mesoporous silica as a new adsorbent. In this respect, SBA-15 as mesoporous silica and 1, 3, 5 Trithiane as effective modifier ligand were chosen, and the modification process was car...

bution and early-diagenesis in salt marsh sediments from the Medway Estuary, Kent, UK. Estuarine Coastal and Shelf Science 57 (1–2), 43–54. Spencer, K.L., Dewhurst, R.E., Penna, P., 2005. Potential impacts of water injection dredging on water quality and ecotoxicity in Limehouse Basin. Chemosphere. Sullivan, N., 2000. The use of agitation dredging, water injection dredging and sidecasting: resu...

A bead-injection system is proposed for total mercury determination in river-water samples. The procedure is based on the introduction of a defined quantity of a resin suspension in the flow system. The selected beads are packed inside of a flow cell and the formed resin mini-column constitutes the optical path. The sample volume is then selected, and its passage by the mini-column allows reten...