銀針真的可以試毒嗎?
Update: 2024-02-19
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武俠小說裡,常會看到用銀針來試毒。但事實上,銀針試不出所有的毒,只有砒霜。
因為古代的生產技術落後,使得砒霜裡都摻留有少量的硫和硫化物,而它和銀一接觸,就會產生化學反應,使銀針的表面生成一層黑色的「硫化銀」,這就像我們在泡溫泉時,不能配戴銀飾品的道理相同。所以人們便利用這一點,拿銀針來試毒。
只是,以前的毒藥大多含有硫化物,以銀針試毒還勉強可以,而現在技術比古時候進步得多,可不能傻傻地還用這種方法哦。。
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