Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter1: Introduction
Section: Chapter Questions
Problem 1.9QAP
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Question
![lassify the statements based on whether they describe the method of standard addition, the method of external calibration,
r both.
Standard addition
External calibration
Both](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe89836b-bba0-4df5-9667-e99956de1c6d%2F8df30b91-8417-4e8a-af21-c9f7778a67b2%2Ff5o9ega_processed.png&w=3840&q=75)
Transcribed Image Text:lassify the statements based on whether they describe the method of standard addition, the method of external calibration,
r both.
Standard addition
External calibration
Both
![The response of the instrument must be lincar in the sample matrix.
Systematic errors can occur due to sample or standard preparation.
It consists of a series of standard analyte solutions separate from the unknown.
A blank is used to correct the response from the instrument.
Known quantities of a standard solution of the analyte are added to the unknown.
It is the method of choice when the matrix of the sample may affect the signal.
Matrix effects can cause the same analyte concentration in an unknown and standard to give different responses.
It is used to measure the instrument response as a function of a known analyte concentration under a set of conditions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe89836b-bba0-4df5-9667-e99956de1c6d%2F8df30b91-8417-4e8a-af21-c9f7778a67b2%2Fppwb9ls_processed.png&w=3840&q=75)
Transcribed Image Text:The response of the instrument must be lincar in the sample matrix.
Systematic errors can occur due to sample or standard preparation.
It consists of a series of standard analyte solutions separate from the unknown.
A blank is used to correct the response from the instrument.
Known quantities of a standard solution of the analyte are added to the unknown.
It is the method of choice when the matrix of the sample may affect the signal.
Matrix effects can cause the same analyte concentration in an unknown and standard to give different responses.
It is used to measure the instrument response as a function of a known analyte concentration under a set of conditions.
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