still used today; this technology couples a GC to an IR, which detects compounds by applying IR. to the gas effluent. Recent improvements in the hyphenated technique, GC/IR, may provide a simple alternative or. supplemental approach to GC/MS for the identification of certain compounds.
Vans' classic shoe style is made out of canvas, and sometimes suedeor leather. The brand makes an effort to create environmentallysustainable footwear, and uses recycled materials wheneverpossible.
The original version of the Vans skateboard logo was designed in Costa Mesa, California in the 1970s by Mark Van Doren at the age of 13. The son of then President- and co-owner James Van Doren, Mark designed the logo as a stencil to be spray painted on his skateboards. In 1988, Paul Van Doren and Gordon C Lee sold the Vans company to the banking firm McCown De Leeuw & Co. for US$74.4 million.