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甲烷二磺酸亚甲酯MMDS）作为锂离子电池电解液中的关键添加剂，其含量控制直接影响电池的高温循环性能与使用寿命。然而，由于MMDS在强酸强碱条件下易水解、高温环境下易分解的特性，其检测过程对标准品的纯度

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夏天到了，不少人会用蚊香、电热蚊香液驱蚊。可您知道吗？这些驱蚊产品安不安全，其实是有国家标准严格把关的！GB/T 13917.4-2009、GB/T 13917.5-2009、GB/T 13917.6

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