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在化学分析与环境监测的广阔领域里，精准的pH值测量是基础中的基础。多年的实验室工作经验告诉我，一个微小的pH偏差，都可能对实验结果产生重大影响。而氢氧化钙pH溶液标准物质，正是那把确保我们测量准确无误

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8月9日上午，《中国口腔健康发展报告2019）》又名《中国儿童口腔健康状况》蓝皮书，下文简称《儿童口腔健康蓝皮书》）发布会暨第三届儿童口腔健康管理国际论坛在成都顺利召开。此次发布会以“关注儿童口腔，共

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