A selective off-line preconcentration technique for the V(V) complex with 4-(2-pyridylazo)resorcinol has been developed and successfully applied to the determination of V(V) in an air-borne sample. The target complex was separated from excess reagent using an ODS cartridge and water as the eluent. The complex was then concentrated on another ODS cartridge using tetrabutylammonium bromide and el...

Blank cartridge guns are devices that discharge sound and gas, but no bullet or shot. These devices are very similar to real guns in the form of their external design and the sound generated during their firing. Although it is widely held in society that these devices are harmless, reports from Turkey and the world have shown that these guns are not entirely innocent. Herein, we present a 26-ye...

Pleated membrane filters are widely used to remove undesired impurities from a fluid in many applications. A filter is sandwiched between porous support layers and then pleated packed into an annular cylindrical cartridge with central hollow duct for outflow. Although this arrangement offers high surface filtration area volume ratio, the performance not as efficient those of equivalent flat fil...

OBJECTIVE The recommended method for radiochemical purity testing of 99mTc-mertiatide involves the use of a C-18 solid-phase mini-column cartridge. The mertiatide package insert states that the solvents should be "pushed through the cartridge slowly," but a flow rate is not specified. The mini-column cartridge instruction sheet recommends flow rates of 5-10 and 2-10 mL/min for conditioning and ...

BACKGROUND The axons of chandelier cells (ChCs) target the axon initial segment of pyramidal neurons, forming an array of boutons termed a cartridge. In schizophrenia, the density of cartridges detectable by gamma-aminobutyric acid (GABA) membrane transporter 1 immunoreactivity is lower, whereas the density of axon initial segments detectable by immunoreactivity for the α2 subunit of the GABAA ...