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Cincinnati Children's Hospital Research Foundation (Cincinnati, OH) has patented detection apparatus and methos for electrochemically determining the concentration of quinones and hydroquinones, such as Coenzyme Q10 (CoQ10 and CoQ10H2) in biological fluids as well as CoQ9 and CoQ7.
The 2% OTC hydroquinones are relatively ineffective," he said.
Consequences: Glucuronic acid or sulfuric acid conjugates of hydroquinones obviously are taken up, enriched and metabolized to hydroquinone by bacteria.
2] is prepared by coating silica gel with ceric ammonium nitrate and is used to oxidize hydroquinones to their corresponding 1,4-benzoquinone.
The researchers believe that the rate at which hydroquinones diffuse into the soil away from the sorghum root, along with the rate at which the oxygen-hydroquinone reaction takes place, defines a specific zone--around 5 mm from the sorghum root--that contains sufficient hydroquinone levels to germinate Striga.