Using L-half leucine to improve the conditions of tin hydride generation

The determination of tin by hydride generation-atomic spectroscopy has high sensitivity, but the reaction acidity range for the reduction of Sn2 + to SnH4 by potassium borohydride (sodium) is very narrow, and it is susceptible to the interference of coexisting ions. The experimental conditions are very harsh. L-cysteine ​​improves the quenching hydride reaction conditions, significantly broadens the optimal acidity range of the reaction, improves the atomic fluorescence signal of tin, eliminates the co-existence of certain coexisting ions, and on this basis, established a flow injection A new method for determination of trace tin in low alloy steel by hydride generation and atomic fluorescence method.

Dog Interactive Toys

These fun and rewarding toys are great for reducing anxious pet behavior and redirecting destructive behavior.

Interactive dog toys can work well on smooth and flat surface, each package has floor sticker, if you want to use on matte wood floors, walls and concrete surfaces, you can put the floor sticker on its surface, the floor sticker will provide stronger suction for the suction cup.

Environmental friendly, safe and harmless, adopting reinforced design which can resist the long-term bite of pet dogs.

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We are a Chinese pet products manufacturer, our company produces and sells various cat accessories and dog accessories, including Pet Toys , Pet Apparel And Accessories, Pet Collar And Leashes , Pet Beds And Accessories, Pet Cleaning And Grooming Products, Pet Bowls And Feeders , Pet Houses , and Pet Carriers And Travel Products, which are accepted OEM&ODM. Please don`t hesitate to contact me if you need anything.

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