样品

Sample

认定值

Certified

测定值

Found

平均值

Average

极差R E_R

Rang

RSD

U₉₅

NaCl

30.00

29.6, 30.4, 30.2, 30.4, 29.8,

29.6, 30.2, 29.8, 30.4, 29.8

30.02

0.8 0.52

1.11

0.17

KI

70.00

69.6, 70.0, 70.4, 69.8, 70.4,

69.6, 69.8, 70.6, 70.0, 70.8

70.08

1.2 0.78

0.56

0.25

Na₂SO₄

50.00

50.0, 50.0, 49.6, 49.6, 49.6,

50.4, 50.4, 50.0, 50.0, 50.4

50.00

0.8 0.52

0.65

0.21