Ultrasound-Assisted Emulsification Microextraction Based on Solidification Floating Organic Drop Trace Amounts of Manganese Prior to Graphite Furnace Atomic Absorption Spectrometry Determination

Table 1

Temperature program of GFAAS for determination of manganese.

Steps	Temperature (°C)	Time (S)	Argon flow rate (L min^−1)	Read command
Dry stage	85	5.0	3.0	No
Dry stage	95	40.0	3.0	No
Dry stage	270	10.0	3.0	No
Ash stage	700	5.0	3.0	No
Ash stage	700	1.0	3.0	No
Gas stop step	700	2.0	0.0	No
Ramp step and read command	2400	1.1	0.0	Yes
Atomize hold step and read command	2400	2.0	0.0	Yes
Tube clean with maximum gas flow	2430	2.0	3.0	No