很多人对叶绿素a测定仪的认知停留在"只能测叶绿素"，实际上FT-SS15S便携式水质叶绿素a测定仪可同步检测叶绿素a与蓝绿藻两项核心指标，且均采用荧光法检测技术，一台设备就能完成水体藻类状况的评估。

为什么要同时测叶绿素a和蓝绿藻？

叶绿素a和蓝绿藻是两个互补的检测指标，各自对应不同的监测价值：

• 叶绿素a是所有藻类（绿藻、硅藻、蓝藻等）共有的核心光合色素，其浓度直接反映水体中浮游植物的总生物量，是评价水体富营养化程度的核心指标。简单来说，它能告诉你"水里藻类总量多不多"。

• 蓝绿藻（蓝藻）是藻类中最易引发水华灾害、产生藻毒素的类群，直接关系饮用水安全、水产养殖安全和水体生态健康。它能告诉你"水里的危险藻种多不多"。

只测叶绿素a，无法识别产毒蓝藻的增殖风险；只测蓝绿藻，无法掌握水体整体富营养化水平。两者同步检测，才能判断水体营养状态、预警水华风险，这也是双参数检测的核心价值。

两项检测，统一的荧光法技术

FT-SS15S的叶绿素a与蓝绿藻检测，均采用荧光法原理。荧光法是目前原位、便携检测的主流技术，其核心逻辑是：藻类细胞中的色素分子会吸收特定波长的激发光，跃迁到高能级状态，随后在返回基态的过程中释放出特定波长的荧光；荧光强度与色素浓度呈正相关，通过检测荧光强度就能换算出对应物质的浓度。

这种检测方式无需添加任何化学试剂，也不需要对水样进行萃取、过滤等预处理，真正实现"探头入水即出结果"，非常适合野外现场检测。和传统实验室分光光度法相比，它操作更简单、检测速度更快，也避免了试剂耗材的成本和废液处理的麻烦。

双参数检测的配置细节

• 叶绿素a检测通道：测量范围0~400ug/L，覆盖清洁地表水到重度富营养化水体；测量精度R²>0.999，分辨率达0.01ug/L，低浓度场景下也能捕捉浓度变化。传感器自带温度补偿功能，可抵消野外水温差异对荧光效率的影响，保障不同环境下的数据稳定性；同时配备刷子自清洁结构，检测过程中自动清理探头表面，避免藻类、悬浮物附着影响数据准确性。

• 蓝绿藻检测通道：测量范围0~200.0Kcells/mL，测量精度R²>0.999，分辨率0.1Kcells/mL，可识别蓝藻细胞浓度变化。传感器同样搭载刷子自清洁功能，减少野外作业时的人工维护工作量。

主机配备2个485接口，支持一拖多线束连接，一次下水即可同时获取两项检测数据，不用分两次检测，野外巡检效率直接翻倍。对于水源地监测、河湖巡查、水产养殖等场景，一台双参数荧光法检测设备，既能节省采购成本，也能让水质评估更、更高效。便携式水质叶绿素a测定仪

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