Experimental

numbers

Factors

Mean diameters

(nm)

Temperature (˚C)

Rotate speed (rpm)

Ultrasonic time (min)

Filters (μm)

1

30

60

2

unfiltered

177.63

2

30

120

8

0.22

126.37

3

30

180

16

0.22/0.10

114.03

4

50

60

8

0.22/0.10

117.00

5

50

120

16

unfiltered

113.86

6

50

180

2

0.22

171.50

7

70

60

16

0.22

120.00

8

70

120

2

0.22/0.10

159.23

9

70

180

8

unfiltered

123.73

K₁

139.34

138.21

169.45

138.41

K₂

134. 12

133.15

122.37

139.29

K₃

134.32

136.42

115.96

130.09

Range

5.22

5.06

53.49

9.2

Optimum Conditions

50

120

16

0.22/0.10