Public environmental attention, media coverage, and corporate green innovation: evidence from heavily polluting industries in China.

Against the background of building a multi-environmental co-governance system, it is of great importance to systematically explore how public environmental attention (PEA) affects corporate green innovation (GI). Based on the panel data of Chinese A-share listed enterprises of heavily polluting industries from 2013 to 2020, this paper empirically explores the role of PEA in GI and examines the moderating impacts of media visibility and media favorability. The results indicate that the higher degree of public environmental attention, the more corporate green innovation.

Quantitative multiresidue analysis of antibiotics in milk and milk powder by ultra-performance liquid chromatography coupled to tandem quadrupole mass spectrometry.

A simple and fast multiresidue extraction and purification method was developed for the determination of 61 veterinary drugs, belonging to seven classes, in milk and milk powder. The extraction depends on the acetonitrile solvent, followed by a single step to remove lipids with fatty acid chains using a new reversed phase SPE without traditional pre-equilibration and washing steps before eluting SPE. The purifying lipid effect of the present preparation method was evaluated by comparing the response changes of ion peak areas of the milk endogenous metabolites before and after SPE treatment using ultra-fast LC coupled to tandem quadrupole and TOF MS.

Accumulation and tolerance characteristics of cadmium in a potential hyperaccumulator--Lonicera japonica Thunb.

Phytoremediation using hyperaccumulators is a promising technique of removing soil pollutants. In the study, growth responses, cadmium (Cd) accumulation capability and physiological mechanisms of Lonicera japonica Thunb. under Cd stress were investigated.

[Freezing injury of plant and oxidative stress--superoxide generation in freeze-thaw cycles of cabbage leaf tissues].

To test the hypothesis that oxidative stress is involved in inducing freezing injury of plants, nitroblue tetrazolium (NBT) was infiltrated into cabbage leaf tissues before they were frozen. NBT was reduced to formazans in freeze-thaw cycles. The ethanol-extractable mono-formazan was measured by a spectrophotometer, and used as a quantitative indicator of oxidative stress that developed during a freeze-thaw cycle.