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. Author manuscript; available in PMC: 2022 Nov 23.
Published in final edited form as: Langmuir. 2021 Apr 22;37(17):5222–5231. doi: 10.1021/acs.langmuir.1c00167

Table 3.

Experimental Data of Trial Factors and UMN Recovery

sonication
[UMN]0
[UMN]max
[UMN]recovery
trial pH (min) V R mg mL−1 mg mL−1 mg mL−1
1322–1 5.0 30 1 3.1 0.8 0.6
1322–2 5.0 30 1 3.1 0.8 0.7
1322–3 5.0 30 1 3.1 0.8 0.6
1123–1 5.2 10 1 4.0 0.9 0.7
1123–2 5.2 10 1 3.8 0.8 0.5
1123–3 5.2 10 1 4.1 0.9 0.6
1112–1 5.2 10 0.8 2.9 0.9 0.6
1112–2 5.2 10 0.8 3.0 0.9 0.4
1112–3 5.2 10 0.8 3.0 0.9 0.5
1111–1 4.8 10 0.8 1.0 1.0 1.5b
1111–2 4.8 10 0.8 1.0 1.0 1.5b
1111–3 4.8 10 0.8 1.0 1.0 1.3b
a

Experimental trials with replicates (i.e., 1, 2, 3 after the hyphen in each trial name). Numbers are experimental values based on optimization design. The [UMN] recovery is the mass concentration of UMNs recovered after extraction of PERFUMNs. Trials are ordered from best to worst performance in both yield and efficiency; 1322 was the best performance, 1123 is the first trial above the average, 1112 was the first trial below average, 1111 had the worst performance.

b

indicates values that are above the expected maximum concentration.