Reaction of dinitrogen pentoxide with fluoranthene
作者:Barbara. Zielinska、Janet. Arey、Roger. Atkinson、Thomas. Ramdahl、Arthur M. Winer、James N. Pitts
DOI:10.1021/ja00274a045
日期:1986.7
The products and mechanisms of the reactions of dinitrogenpentoxide (N/sub 2/O/sub 5/) with fluoranthene (FL) in aproticsolvents have been investigated. The influence of solvent polarity and temperature and the effects of addition of HNO3 on the resulting nitrofluoranthene (NFL) isomer distributions have been studied. These data are compared with the NFL isomer distributions resulting from the reactions
Formation of Mutagenic Nitrofluoranthenes in the Gas-Solid Heterogeneous Reaction of Particle-associated Fluoranthene in NO<sub>2</sub>-O<sub>3</sub>-O<sub>2</sub>System
In the gas-solid heterogeneous reactions of particle-supported fluoranthene with ppm levels of nitrogen dioxide and ozone, dinitrofluoranthenes and 3-nitrofluoranthene (3-NF) were formed only in the dark and 2-NF was formed only under photoirradiation while 1-, 7-, and 8-NFs were formed under both conditions. Yield and distribution of the products varied depending on the kind of supports employed.
An affinity matrix and a method for the detection of low molecular weight compositions such as aflatoxins are provided utilizing specific monoclonal IgM antibody having an affinity constant not less than about 1 x 109 liters per mole. Methods for the preparation and use of such affinity matrices are also given. The detection is rapid, accurate, reproducible, and allows for quantitative recovery of the composition of interest.
本发明提供了一种亲和基质和一种检测黄曲霉毒素等低分子量成分的方法,该方法利用了亲和力常数不小于约 1 x 109 升/摩尔的特异性单克隆 IgM 抗体,还提供了制备和使用这种亲和基质的方法。 该检测方法快速、准确、可重复,并可定量回收相关成分。
Electrochemical sensors
申请人:ISIS Innovation LTD.
公开号:US10233084B2
公开(公告)日:2019-03-19
An electrode for use in a electrochemical sensor comprises carbon modified with a chemically sensitive redox-active compound, excluding an electrode based on carbon having derivatized thereon two redox-active species wherein at least one of said species is selected from anthraquinone, phenanthrenequinone and N,N′-diphenyl-p-phenylenediamine (DPPD). The invention further provides a pH sensor comprising:
a working electrode comprising carbon modified with a chemically sensitive redox active material; and
a counter electrode,
wherein the ratio of the surface area of the working electrode to the surface area of the counter electrode is from 1:10 to 10:1. Also provided is a pH sensor comprising:
a working electrode comprising carbon modified with a chemically sensitive redox active material, and
a counter electrode,
wherein the area of the working electrode is from 500 μm2 to 0.1 m2. The uses of these electrodes and sensors are also described.