New ways of using a mass spectroscopy machine may produce uncompromised evidence.

新方法使用质谱仪器进行分析，这样则会产生完全可靠的证据。

Initial mass spectroscopy suggested proteins were involved, but shed no light on which.

最初的质谱分析表明涉及蛋白质，但并没有阐明具体是哪种。