英语语法分析

Environment friendly, hydrogen peroxide can be decompounded into water and oxygen, no production of salt.

安全环保，双氧水被分解成天然组分的水和氧气，不生成盐类。

Methods:After decompounded the sample by nitric acid, then to detect using both flame and graphite oven atomic absorption spectrophotometer.

方法：将样品经硝酸分解后，采用火焰原子吸收法和石墨炉原子吸收法分析测定。