shí / yàn / shì / zhèng / zài / jiǎn / cè / sù / liào / yàng / pǐn / zhōng / de / fēn / jiǎ / wán / hán / liàng实验室正在检测塑料样品中的酚甲烷含量。The laboratory is testing the amount of bisphenol A in the plastic samples.