| 1.35 | recovered quantity value ratio, R | ||
| analytical recovery | |||
| recovery | |||
| Measured quantity value relating a component to a system divided by a reference value. | |||
| Note 1: | The quantities involved are rational unitary quantities and of the same kind of quantity, usually either a concentration or content. | ||
| Note 2: | The respective measurement procedures must be specified. | ||
| Note 3: | The definition can be symbolized by RB = QB,measured/QB,reference, where R denotes the recovered ratio of the quantity values Q, and B indicates the component. | ||
| Note 4: | The term “recovery” is also used to describe material recovery. Therefore, the term “recovery” should not be used without qualification unless the meaning is clear from the context. | ||
| Note 5: | Recovered quantity value ratio is used in procedure validation14 to evaluate and correct for the measurement procedure bias. | ||
| Note 6: | Recovered quantity value ratio may be estimated from the measured change of the quantity value of the component of interest upon the addition of a known amount of substance or mass of the component. The added material containing the component is often termed “spike”. See also: blank material Note 5, measurement procedure with standard addition, and spike. | ||
| See also: ref. 14 and 25. | |||
| 1.35 | recovered quantity value ratio, R | ||
| analytical recovery | |||
| recovery | |||
| Measured quantity value relating a component to a system divided by a reference value. | |||
| Note 1: | The quantities involved are rational unitary quantities and of the same kind of quantity, usually either a concentration or content. | ||
| Note 2: | The respective measurement procedures must be specified. | ||
| Note 3: | The definition can be symbolized by RB = QB,measured/QB,reference, where R denotes the recovered ratio of the quantity values Q, and B indicates the component. | ||
| Note 4: | The term “recovery” is also used to describe material recovery. Therefore, the term “recovery” should not be used without qualification unless the meaning is clear from the context. | ||
| Note 5: | Recovered quantity value ratio is used in procedure validation14 to evaluate and correct for the measurement procedure bias. | ||
| Note 6: | Recovered quantity value ratio may be estimated from the measured change of the quantity value of the component of interest upon the addition of a known amount of substance or mass of the component. The added material containing the component is often termed “spike”. See also: blank material Note 5, measurement procedure with standard addition, and spike. | ||
| See also: ref. 14 and 25. | |||