Determination of 2-propanol in surface cleaning solutions used for copper continuous casting process by flow injection-spectrophotometric detection with on-line column separation.

A flow-injection system has been developed for the determination of 2-propanol in the surface cleaning solutions used in the copper continuous cast rod making system. Adsorption chromatography in nitric acid medium was used for the on-line separation of oily substances in the sample solution. Cerium(IV) diammonium nitrate was utilized as the chromogenic reagent for the spectrophotometric detection of 2-propanol.

Determination of 0.1 to 1000 micro g/ml cadmium in a hydrometallurgical zinc refining process stream by a flow injection technique with computer controlled injection method.

A computer-controlled flow injection system was developed for the determination of cadmium in a hydrometallurgical zinc refining process stream. An anion-exchange method in acidic potassium iodide medium was used for the on-line separation of cadmium from the matrix zinc. 1-(4-Nitrophenyl)-3-(4-phenylazophenyl)triazene (Cadion) was used as the chromogenic reagent for the spectrophotometric detection of cadmium.

[Removal of infected pacemaker leads in the elderly under extracorporeal circulation: two case reports and review of Japanese literature].

Two elder cases in whom infected pacemaker leads were removed under extracorporeal circulation (ECC) are reported. The leads could not be with drawn without direct sharp dissection under ECC because they had become firmly encased with fibrous tissue within the right ventricle. Postoperative courses were uneventful and neither of these patients has experienced recurrent infection to date.

Determination of cadmium and bismuth in high-purity zinc metal by inductively coupled plasma mass spectrometry with on-line matrix separation.

Traces of cadmium and bismuth in high-purity zinc metal were determined by inductively coupled plasma mass spectrometry (ICP-MS) in combination with flow injection (FI) on-line matrix separation (FI-ICP-MS). The anion-exchange separation method of the potassium iodide (KI) system was applied to the separation of the analytes from the matrix zinc. The analytes, cadmium and bismuth, were adsorbed on the anion-exchange (BIO.

[A case of surgical treatment of sever constrictive pericarditis with biventricular failure].

A 68-year-old woman had been pointed out a calcification of pericardium on chest X-ray ten years ago. She admitted to our hospital associated with generalized edema. RA pressure.