Primary and secondary aminesPrimary and secondary amine (PSA) is one of the most powerful solid-phase extraction adsorbent for clean-up of food matrices and multi-pesticide residue analysis. The present study investigates the influence of elution protocols on the capacity of PSA for removal of ...
Dimethyl PhthalateA novel acrylamide modified Primary-Secondary Amine (PSA) analogue (acrylamide/3-aminopropyltriethoxysilane/ silica) was prepared and used as impurities remover for pesticide residues (carbendazim and dimethyl phthalate) in apples by QuEChERS combined with pipette-tip micro solid-phase ...
The invention relates to a device for recycling reversely-released gas of a PSA (Primary Secondary Amine) purification section to a refinement section. According to the device, a recycled gas cabinet is connected with the bottom of a purification tower by a line pipeline; the purification tower ...
In this study, TMHD was partly replaced with three different low-cost templates: isopropylamine (IPA), dibutylamine, and tripropylamine. SAPO-56 was co-crystallized with mixtures of templating amines with up to a ratio of 30%:70% of TMHD:IPA. With using TMHD:IPA, small and defined ...
In this study, we used graphene mixed with primary secondary amine (PSA) and graphitized carbon black (GCB) as dispersive solid-phase extraction materials for the cleanup of tea for the first time. Compared to the literature, the amount of PSA and GCB was greatly reduced. A multi-residue ...
Proline presents unique structural properties as it is the only one of the 20 genetically encoded amino acids to have a secondary amine chain. For this reason, it does not participate in intra- or inter-molecular hydrogen bonding. CPPs forming polyproline-type secondary structures were discovered...
The partially premixed flame is produced when the fuel containing a sub-stoichiometric volume of air (usually stated as primary air) come across a flame front and burns with an oxidizer/secondary air (initially separated) [19]. The reason for choosing a partially premixed flame is mainly its ...