A Novel Two-Enzyme Amperometric Electrode for Lactose Determination.

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A novel two-enzyme amperometric electrode for lactose determination.

Coimmobilization of beta-galactosidase and glucose oxidase in a redox polymer, polyvinylferrocenium perchlorate (PVF+ ClO4-), led to the development of an enzyme electrode for the determination of lactose. The amperometric response of the electrode was measured at +0.70 V vs. SCE, which was due to the electrooxidation of enzymatically produced H2O2. The effects of the substrate and buffer conce...

متن کامل

A Two Electrode Electrochemical Amperometric Sensor for NO2 Detection. A.Fort,

In this work a new and simple two electrode amperometric sensor for NO2 detection is described. The sensor consists of a Nafion® proton exchange membrane (PEM), a Graphite working electrode, and a NiO counter electrode. The developed sensor presents a good sensitivity to NO2 and very small cross sensitivity to CO and O2. A dedicated measurement system was developed, and a measurement protocol w...

متن کامل

Amperometric determination of alcohols, aldehydes and carboxylic acids with an immobilized alcohol oxidase enzyme electrode.

Chemical tests for measurement of blood alcohols are the subject of much interest. particularly in legal cases, and there is a need for quick, simple and reliable assay methods. Likewise. the determinations of carboxylic acids and aldehydes are of importance in various industrial fields, but such assays are difficult to carry out. especially at low concentrations. In the past. alcohols_ have be...

متن کامل

AMPEROMETRIC MICROBIOSENSOR FOR THE DETERMINATION OF CHOLINE

The construction and performance of an amperometric microbiosensor for the determination of choline chloride by immobilizing choline oxidase on a cellulose acetate membrane are described. The procedure of choline determination involved the electrochemical detection of enzymatically generated hydrogen peroxide. This microsensor has a linear response between 0.038-0.1 mM choline chloride. The...

متن کامل

A Novel Carbon Paste Electrode for Potentiometric Determination of Vanadyl Ion

Carbon paste electrode was modified by disodium 2,4-diamino-7-methylbenzo[g] pteridine-5,10-dioxide to fabricate a sensor for potentiometric determination of vanadyl ion (VO2+) in aqueous medium. The new ligand was synthesized in three steps with high yield. The optimal composition of the carbon paste was made of graphite powder (64.5%), ionophore (16.6%), paraffin oil (17.8%), a...

متن کامل

ذخیره 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: Analytical Sciences

سال: 2002

ISSN: 0910-6340,1348-2246

DOI: 10.2116/analsci.18.147