甲醛检测的AHMT分光光度法的测量范围是()A0.1~1.5g/5ml;V=10L,0.01~0.15mg/m3B0.2~3.2g/2ml;V
甲醛检测的AHMT分光光度法的测量范围是()
A0.1~1.5g/5ml;V=10L,0.01~0.15mg/m3
B0.2~3.2g/2ml;V=20L,0.02~0.3mg/m3
C1.0~35.0g/10ml;V=10L,0.02~0.7mg/m3
D0.5~10g/2ml;V=20L,0.02~0.3mg/m3
甲醛检测的AHMT分光光度法的测量范围是()
A0.1~1.5g/5ml;V=10L,0.01~0.15mg/m3
B0.2~3.2g/2ml;V=20L,0.02~0.3mg/m3
C1.0~35.0g/10ml;V=10L,0.02~0.7mg/m3
D0.5~10g/2ml;V=20L,0.02~0.3mg/m3
甲醛检测有三种分光光度法:酚试剂分光光度法、AHMT分光光度法、乙酰丙酮分光光度法。()
甲醛检测乙酰丙酮分光光度法的测量范围分是:1.0~35.0g/10ml;V=10L,0.02~0.7mg/m3。()
酚试剂分光光度法测试甲醛含量,当采样体积为10L时,测量范围为()
A0.01mg/m3~0.15mg/m3
B0.10mg/m3~0.25mg/m3
C0.05mg/m3~0.15mg/m3
D0.25mg/m3~0.55mg/m3
空气中甲醛检测也可采用现场检测方法,测量结果在0.01~0.60mg/m3测定范围内的不确定度应小于20%。()
靛酚蓝分光光度法测氨,当采气体积为5L时,本方法最低检出浓度为0.01mg/m3,测量范围为()
A0.01mg/m3~0.15mg/m3
B0.01mg/m3~2mg/m3
C0.1mg/m3~2.0mg/m3
D0.15mg/m3~1mg/m3
酚试剂分光光度法测定甲醛,当甲醛含量0.4g/5ml~1.0g/5ml时,样品加标回收率为95%~100%。()
甲醛酚试剂分光光度法测试,将5ml吸收液装入气泡吸收管,以0.5L/min流量采样,采气体积为10L。()