. 2014 Jul 12;407(11):3159–3167. doi: 10.1007/s00216-014-8003-5

Table 3.

Uncertainty budget for the baby food material

Item	Value	Contribution
w _Z	2.091(30) ng/g	u(w _Z) 25 %
m _Y,1	0.23302(07) g
m _X,1	2.00594(01) g
m _Z,1	0.22059(07) g
m _Yc,1	0.23302(07) g
${\bar{R}}_{1}$	0.937(23)	u( ${\bar{R}}_{1}$ ) 75 %
w _X,i	0.217(6) ng/g 0.184(7) ng/g 0.203(9) ng/g 0.198(7) ng/g 0.191(9) ng/g 0.187(5) ng/g
w _T	0.197(9) ng/g	u( ${\bar{w}}_{X}$ ) 34 % u(F _X) 66 %

The first six rows represent the terms of Eq. 2; the row labeled w _X,i lists the six individual results (in italics the result corresponding to the first six rows); w _T is the result of Eq. 4; the number in parentheses is the numerical value of u _c referred to the corresponding last digits of the quoted result; the last column shows the percent contribution to the respective u _c