Table 1 Influence of ultrafiltration flux on transmembrane pressure and protein filtration.

From: In vitro evaluation of critical ultrafiltration fluxes and transmembrane pressure in a high flux dialyzer

Conditions

Condition 1

Condition 2

P-values

Time

T0

T60

T0

T60

 

Qin (mL/min)

322 ± 2

322 ± 2

0.9

QUF (mL/min)

126 ± 1

174 ± 4 †

< 0.001

TMP (mmHg)

174 ± 4

179 ± 4

260 ± 15 †

497 ± 20 †*

< 0.001

Feed protein concentration (g/L)

31.6 ± 0.8

32.0 ± 1.2

30.1 ± 1.8

27.7 ± 2.9

0.4

Ultrafiltate protein concentration (mg/L)

36 ± 1

35 ± 1

52 ± 5 †

38 ± 4 *

0.01

Sieving coefficient (‰)

1.14 ± 0.02

1.08 ± 0.06

1.72 ± 0.21 †

1.35 ± 0.07

0.02

Proteins retained on the membrane (g)

-

0.91 ± 0.03

-

5.91 ± 0.30 †

< 0.001

  1. † Condition effect (P < 0.05 vs. condition 1 at same time).
  2. * Time effect (P < 0.05 vs. T0 in same condition).
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