GB/T 23199-2008 English PDF

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GB/T 23199-2008: Determination of rare earth elements in tea by inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23199-2008	399	Add to Cart	3 days	Determination of rare earth elements in tea by inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry	Obsolete

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Basic data

Standard ID: GB/T 23199-2008 (GB/T23199-2008)
Description (Translated English): Determination of rare earth elements in tea by inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X55
Classification of International Standard: 67.140.10
Word Count Estimation: 10,140
Date of Issue: 2008-12-31
Date of Implementation: 2009-06-01
Regulation (derived from): National Standard Approval Announcement 2008 No.27 (Total No.140)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES)-Determination of tea scandium (Sc), yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu) and other 16 kinds of rare earth elements (hereinafter referred to as 16 kinds of rare earth elements) method. This standard applies to the determination of rare earth elements in tea 16 kinds of. Inductively coupled plasma mass spectrometry detection limit: element scandium, yttrium, cerium, praseodymium, neodymium, samarium europium lanthanide detection limit/(��g/kg) 0. 5 0. 4 0. 09 0. 1 0. 07 0. 09 0. 2 0. 05 gadolinium, terbium, dysprosium, holmium, erbium element thulium, ytterbium, lutetium detection limit/(��g/kg) 0. 1 0. 3 0. 2 0. 05 0. 06 0. 05 0. 07 0. 05 inductively coupled plasma atomic emission spectrometry detection limit: Elements of scandium, yttrium, cerium, praseodymium, neodymium, samarium europium lanthanide detection limit/(��g/kg) 0. 4 2 11 15 16 16 9 7 elements gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium detection limit/(��g/kg) 5 8 5 3 14 4 0. 6 0. 9.

GB/T 23199-2008: Determination of rare earth elements in tea by inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of rare earth elements in tea by inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry ICS 67.140.10 X55 National Standards of People's Republic of China Determination of rare earth elements in tea Inductively coupled plasma atomic emission spectrometry and Inductively Coupled Plasma Mass Spectrometry Posted 2008-12-31 2009-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The Standard Appendix A, Appendix B, Appendix C are informative appendices. This standard was proposed by the National Food Quality Supervision, Inspection and Safety Center. This standard by the National Standardization Technical Committee of tea. This standard was drafted. the National Food Quality Safety Supervision and Inspection Center, the National Tea Quality Supervision and Inspection Center. The main drafters of this standard. everywhere, Yang Yanli, Zhou Weilong, non versed week, Chen, Xu Ling. Determination of rare earth elements in tea Inductively coupled plasma atomic emission spectrometry and Inductively Coupled Plasma Mass Spectrometry

1 Scope

This standard specifies the inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) measured Given tea scandium (Sc), yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium ( tb), dysprosium (Dy), Holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu) and other 16 kinds of rare earth elements (hereinafter referred to as 16 kinds of rare earth elements) method. This standard applies to the determination of 16 kinds of tea rare earths. Inductively Coupled Plasma Mass Spectrometry detection limit. Element yttrium scandium lanthanum, cerium, praseodymium, neodymium, samarium europium The detection limit/(μg/kg) 0.5 0.4 0.09 0.1 0.07 0.09 0.2 0.05 Element gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium The detection limit/(μg/kg) 0.1 0.3 0.2 0.05 0.06 0.05 0.07 0.05 Inductively coupled plasma atomic emission spectrometry detection limit. Element yttrium scandium lanthanum, cerium, praseodymium, neodymium, samarium europium The detection limit of/(μg/kg) 0.4 2 11 15 16 16 9 7 Element gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium The detection limit of/(μg/kg) 5 8 5 3 14 4 0.6 0.9

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) GB/T 8302 sampling tea GB/T 8303-2002 tea milled sample preparation and determination of dry matter content (eqv ISO 1572. 1980) The first Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Principle 3 The samples were acid digestion solution with deionized water to dissolve, set the volume to volume. The sample solution was introduced into an inductively coupled plasma mass spectrometer (ICP-MS), a standard sample of each element corresponding to the mass of the premises response signal contrast, the content of each element is obtained. Were measured 16 kinds of rare earth elements in a given content, calculate the total amount.

4 Reagents

Unless otherwise indicated, the reagents used in the analysis are excellent pure water to GB/T 6682-2008 specified level of water. ......

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