检测认证人脉交流通讯录
化学需氧标准品（COD）
- 这真不是您需要的产品？
- 品 牌：
- AccuStandard Inc.
- 产品编号：WC-COD-5X-10ML,纯度：500 μg/mL in Water,存储条件：Store at 2-8℃
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