Reassessment of Graham Steell murmur using platinum electrode technique.
نویسندگان
چکیده
منابع مشابه
Reassessment of Graham Steell murmur using platinum electrode technique.
The Graham Steell murmur of relative pulmonary regurgitation has been reassessed using a direct technique involving injection of ascorbic acid into the pulmonary artery by needle puncture and sensing with a platinum electrode in the right ventricle. When this technique was used in 5 cases of suspected Graham Steell murtnur, pulmonary regurgitation was found in all 5, while aortic regurgitation ...
متن کاملDetermination of Captopril using platinum coated nanoporous gold film electrode
In this article electrochemical determination of captopril at the surface of the platinum coated nanoporous gold film (PtNPGF) electrode is reported using the cyclic voltammetry and amperometry. For the preparation of PtNPGF, the surface of NPGF electrode was covered with Cu layer using underpotential electrochemical deposition (UPD).Afterward, the copper layer is replaced with platinum ions vi...
متن کاملPulmonary valve momvement Pulmonary hypertension Pulmonary ejection sound Pulmonary ejection systolic murmur Mid-systolic extrasound Pulmonary component of the second heart sound Graham Steell murmur Mechanism of production of cardiovascular sound
Pulmonary valve movement and the related acoustic phenomena were investigated using high speed strip-chart echoand phonocardiographic recording. The opening of the pulmonary valve had no definite relationship to the acoustic phenomena, whereas the pulmonary ejection sound was closely related in time to the early systolic maximal opening of the valve. The concomitant pulmonary ejection systolic ...
متن کاملdetermination of captopril using platinum coated nanoporous gold film electrode
in this article electrochemical determination of captopril at the surface of the platinum coated nanoporous gold film (ptnpgf) electrode is reported using the cyclic voltammetry and amperometry. for the preparation of ptnpgf, the surface of npgf electrode was covered with cu layer using underpotential electrochemical deposition (upd).afterward, the copper layer is replaced with platinum ions vi...
متن کاملPlatinum Nanoparticle Electrode Modified Iodine using Cyclic Voltammetry and Chronoamperometry for Determination of Ascorbic Acid
This study investigated the oxidation of ascorbic acid (Vitamin C) using a platinum nanoparticle electrode coated with an iodine monolayer, called a modified electrode. The electrode were grown using the cyclic voltammetry technique and the electrochemical measurements were taken using the cyclic voltammetry and chronoamperometric technique. In the case of platinum nanoparticle electrode modifi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Heart
سال: 1974
ISSN: 1355-6037
DOI: 10.1136/hrt.36.10.1023