The present work describes a selective, rapid and sensitive method for the determination of cobalt using the adsorptive differential pulse voltammetry technique. The method is based on the accumulation of Co(II) complex with 2-aminocyclopentene-1-dithiocarboxylic acid on a hanging mercury drop electrode, followed by measurement of the current of the adsorbed complex. The effects of experimental...

BACKGROUND Previous studies have suggested that end-tidal CO(2) (ET-CO(2)) may be inaccurate during one-lung ventilation (OLV). This study was performed to compare the accuracy of the noninvasive monitoring of PCO(2) using transcutaneous CO(2) (TC-CO(2)) with ET-CO(2) in patients undergoing video-assisted thoracoscopic surgery (VATS) during OLV. MATERIALS AND METHODS In adult patients undergo...

In this study, the La3+/Co3O4 nanoflowers were synthesized by co-precipitation method. The morphology of the La3+/Co3O4NFs were characterized using scanning electron microscopy (SEM), and were further used to modify the graphite screen printed electrode (GSPE). The electrochemical behavior of acetaminophen at La3+/Co<s...

In this study, the La3+/Co3O4 nanoflowers were synthesized by co-precipitation method. The morphology of the La3+/Co3O4NFs were characterized using scanning electron microscopy (SEM), and were further used to modify the graphite screen printed electrode (GSPE). The electrochemical behavior of acetaminophen at La3+/Co<s...

The solvothermal reactions of Co(II) salts and three rigid polytriazolate ligands lead to a linear Co(4) cluster, [Co(4)(3,5-bptp)(2)(OMe)(2)(NO(3))(2)(MeOH)(2)]·1.5H(2)O·MeCN (1), and a square-shaped {Co(16)} metallamacrocycle, [Co(16)(1,3-bptb)(4)(3,5-bptpt)(4)(OMe)(12)(H(2)O)(2)]·25H(2)O (2), which comprises four linear {Co(4)} subunits similar to those of 1 bridged by the longer 3,5-bptpt(3...

Clinical transcranial Doppler assessment of cerebral vasomotor reactivity (CVMR) uses linear regression of cerebral blood flow velocity (CBFV) vs. end-tidal CO(2) (Pet(CO(2))) under steady-state conditions. However, the cerebral blood flow (CBF)-Pet(CO(2)) relationship is nonlinear, even for moderate changes in CO(2). Moreover, CBF is increased by increases in arterial blood pressure (ABP) duri...

Closed (non-steady state) chambers are widely used for quantifying carbon dioxide (CO 2) fluxes between soils or low-stature canopies and the atmosphere. It is well recognised that covering a soil or vegetation by a closed chamber inherently disturbs the natural CO 2 fluxes by altering the concentration gradients between the soil, the vegetation and the overlying air. Thus, the driving factors ...

the present work describes a selective, rapid and sensitive method for the determination of cobalt using the adsorptive differential pulse voltammetry technique. the method is based on the accumulation of co(ii) complex with 2-aminocyclopentene-1-dithiocarboxylic acid on a hanging mercury drop electrode, followed by measurement of the current of the adsorbed complex. the effects of experimental...