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All Journal COPING (Community of Publishing in Nursing) Jurnal Riset Kimia
Yulia -
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Chemistry Education Health Professions Nursing Public Health

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STUDI OPTIMASI KROMIUM (VI) DALAM AIR LAUT SECARA VOLTAMMETRI STRIPPING ADSORPTIF Deswati -; Hamzar Suryani; Imelda -; Yulia -
Jurnal Riset Kimia Vol. 3 No. 1 (2009): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v3i1.45

Abstract

 ABSTRACT Study of optimation chromium (VI) in sea water by adsorptive stripping voltammetry has been done. The aim of this method to get optimum conditions for determination of Cr(VI). Adsorptive stripping voltammetry (AdSV) has been used for the ultra trace determination of chromium using 2,2’- bipyridin as ligand. Parameters were done, like accumulation time, concentration of ligand, pH, accumulation potential, electrolyte concentration and catalyst concentration. In this case, the optimum conditions were reached in accumulation time 80 second, pH 5.0, concentration of 2,2’- bipyridin 10 μM, accumulation potential -0,6 Volt and electrolyte concentration (NH4Cl) 0,1 M. In the optimum conditions, a linear calibration graph was obtained with correlation coefficient of 0.9971, the relative standard deviation was 15.06 % for eight replicates (n = 8) measurements of 10 μg/L of Cr(VI). The detection limit method was 0.1692 μg/L. The method was applied to the direct determination of Cr(VI) in sea water around Muara Padang water. Concentration Cr(VI) in sample was equal to 0.9684 μg/L with recovery of 90.23 %. Keywords : optimation, chromium, adsorptive, stripping, voltammetry
Pemeriksaan Ankle Brachial Index (ABI) Post Exercise Pada Pasien Diabetes Melitus dengan Peripheral Arterial Disease Desak Made Widyanthari; Ratna Sitorus; Yulia -
Coping: Community of Publishing in Nursing Vol 4 No 1 (2016): APRIL 2016
Publisher : Program Studi Sarjana Ilmu Keperawatan dan Profesi Ners, Fakultas Kedokteran, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.716 KB)

Abstract

The examination of Ankle Brachial Index (ABI) is one method to detect the presence of Peripheral Arterial Disease (PAD) in Diabetic patients. Inaccuracy the diagnosis of PAD results in the inadequate treatment of PAD and this can lead to serious problems such as  amputations, impaired functional capacity, low quality of life and depression. This study aims to determine differences ABI examination Pre and Post Exercise in diabetic patients with intermittent claudication. This study design was  one group pre-post test with  17 samples. The test were analyzed using dependent t test and showed  a significant differences ABI value pre and post exercise on the right foot with  p value of 0.004 and the left foot with  p value of  0.000. This study showed  the measurement of ABI post exercise more objective for the diagnosis of PAD in diabetic  patients with intermittent claudication or suspected PAD.
Co-Authors Desak Made Widyanthari Deswati - Hamzar Suryani Imelda - Ratna Sitorus