1. Describe briefly the differences between primary and secondary stan-dards in terms of their accuracy and their use.2. What is meant by the "atomic time scale"? How is this time scalerelated to UT,?

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1. Describe briefly the differences between primary and secondary dards in terms of their accuracy and their use. stan-

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

Chapter11: Atomic Mass Spectrometry

Section: Chapter Questions

Problem 11.9QAP

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1. Describe briefly the differences between primary and secondary stan-
dards in terms of their accuracy and their use.
2. What is meant by the "atomic time scale"? How is this time scale
related to UT,?

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