Determination of catecholamines and uric acid in biological fluids without pretreatment, using chemically amplified biosensors

Enzyme-based catechol sensor based on the cyclic reaction between catechol and 1,2-benzoquinone, using l-ascorbate and tyrosinase

Shunichi Uchiyama, Yasushi Hasebe, Hiroya Shimizu et al. · Analytica Chimica Acta · 1993 · 57 citations

Biochemistry, Cyclic Reaction, Electroanalytical Sensor +3

Enzyme-based chemically amplified flow-injection determination of catechol and catecholamines using an immobilized tyrosinase reactor and l-ascorbic acid

Yasushi Hasebe, Kenichiro Takamori, Shunichi Uchiyama · Analytica Chimica Acta · 1993 · 34 citations

Amplified Flow-injection Determination, Engineering, Biochemistry +13

Chemical Amplification of Uric Acid Sensor Responses by Dithiothreitol

Shunichi Uchiyama, Hiroya Shimizu, Yasushi Hasebe · Analytical Chemistry · 1994 · 34 citations

Altmetrics, Chemical Amplification, Engineering +15

Chemically amplified current response of vitamin C based on the cyclic reaction between ?-ascorbic acid and dehydroascorbic acid, using dithiothreithol and ascorbate oxidase

S. Uchiyama · Talanta · 1992 · 22 citations

Biochemistry, Physiology, -Ascorbic Acid +2

Highly Amplified Spectrophotometry of Polyphenols Based on a Cyclic Reaction Between Polyphenols and<i>o</i>-Quinone Compounds Using Tyrosinase and L-Ascorbic Acid

Yasushi Hasebe, Yusaku Tanaka, Shunichi Uchiyama · Analytical Letters · 1994 · 20 citations

Food Chemistry, Agricultural Chemistry, Highly Amplified Spectrophotometry +13