A method for FIA determination of anionic detergents in water was proposed, and the relationships between the experimental conditions of a flow injection system and linear response range and detection limit of the liquid membrane anionic detergent selective electrode were given. The relative standard deviation is≤3.0％, recovery 97—104％ for the LAS concentration range 4.0—100mg/L, and sampling frequency 80—100 samples/h.
Results Sort the risk factors by turns according to OR value, threatened abortion, insecticide, oestrogenic hormone, tocolytic agent, organic solvent,abstergent, subcalorism and mal-medication in inchoated duration of pregnancy,conceptus age<37 weeks.
In the fraction of tightly bound membrane lectins (eluted with 0.5% detergent), lectin activity decreased during the first two days but increased on day 4 after inoculation.
The antiproteinase activity of BPTI in the complexes was rather low but increased up to 70% of the initial activity on addition of an ionic detergent (sodium deoxycholate).
Although it was shown earlier that phosphorylation of Na,K-ATPase by cAMP-dependent protein kinase (PKA) occurs in intact cells, the purified enzyme in vitro is phosphorylated by PKA only after treatment by detergent.
The enzyme was stable in the presence of detergents, such as Triton-X100, Tween-80, SDS (sodium dodecyl sulfate), and EDTA (ethylenediaminetetraacetic acid), at pH 11.5 and 37°C for 30 min.
The protein imported by rickettsiae is weakly extracted by nonionic detergents and, like porin in mitochondria, is insensitive to proteinase K in whole cells.
Procedures for the potentiometric determination of nonionic surfactants in wastewater, cationic surfactants in hair rinses, and separate determination of nonionic and anionic surfactants in shampoos and synthetic detergents were developed.
Headspace solid-phase microextraction (HS-SPME) has been successfully applied to the determination of perfume components in scented candle wax, liquid laundry detergent, and fabric softener.
Fluorescent whitening agents (FWA) are part of most laundry detergent formulations and previously have been used for fingerprinting anthropogenic sewage waters.
In addition, reference fluorescence spectra were prepared for humic and tannic acid and for the laundry detergent used exclusively in the household discharging into the test septic system.
Quite to the contrary, a decrease in the precipitation tendency of sparingly soluble calcium phosphates is observed particularly during dilution (rinsing processes) as a consequence of the partial replacement of laundry detergent phosphates by SASIL.
The efficacy of lipase from Aspergillus niger MTCC 2594 as an additive in laundry detergent formulations was assessed using response surface methodology (RSM).
洗涤剂
detergent
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