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Molecularly imprinted polymers for rapid and selective determination of pseudoephedrine and its sulfonate derivative.
Molecularly imprinted polymers (MIPs) were prepared for selective recognition and determination of pseudoephedrine (PSE) and its sulfonate derivative, used as active pharmaceutical ingredient in pharmaceutical preparations. The synthetic procedure of MIP was based on copolymerization of methacrylic acid with PSE and its sulfonate derivative using benzoyl peroxide as a free-radical initiator. The obtained polymers were characterized by using attenuated total reflection-Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The recognition and separation experiments were investigated by using capillary electrophoresis. The results indicate that the obtained MIPs are efficient for recognition of PSE and its sulfonate derivative. The interaction mechanism was studied by using computational chemistry method.Manufacturing devices that operate on and/or store information using data transfer elements or parts are known. In one example of a data transfer part, an array of data transfer elements, such as contact pads, may be used to transfer information. The contact pads may be formed on a data transfer component or other part of the manufacturing device, such as a wafer, substrate, card, or other carrier. The contact pads may be used to transfer information, such as data, to the manufacturing device, or to transfer information, such as data, from the manufacturing device.
In one known configuration, a transfer component may have a data transfer array and a housing that holds the data transfer array. A data transfer component may be a printed circuit board or similar device. For example, a contact pad array may be formed on a surface of a printed circuit board, a printed circuit board may be connected to a module, a module may be connected to a wafer, and a wafer may be connected to another module. A housing may be formed to protect the data transfer array from debris, external forces, and other external disturbances.
For example, data may be transferred from a data transfer component to another component of a device using contact pads that are placed in electrical communication with the data transfer component. In one example
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