SN/T 5347.2-2021 in English

VALID

Determination of Lead, Zinc, Phosphorus, Titanium, Nickel in chromium ore - Inductively Coupled Plasma-Optical Emission Spectrometric method

Issued on:2021-11-22
Implemented on:2022-06-01
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Price(USD)： $150.00
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Standard No:	SN/T 5347.2-2021
Document status:	VALID
Title in English:	Determination of Lead, Zinc, Phosphorus, Titanium, Nickel in chromium ore - Inductively Coupled Plasma-Optical Emission Spectrometric method
Title in Chinese:	铬矿石中铅、锌、磷、钛和镍含量的测定电感耦合等离子体发射光谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2021-11-22
Implemented on:	2022-06-01
Professional Classification:	SN-Import&Export Inspection
Related Keywords:	plasma-optical emission spectrometric method introduction technical background chromium ore standard curve method plasma emission spectrometer chrome ore sample
Related Topics:	Inductance and Emission Spectra emission spectrometry inductive coupling inductively coupled plasma optical emission spectrometry inductive coupling Inductively Coupled Plasma inductive plasma Plasma emission spectrum plasma in english Determination of nickel content Nickel content Nickel content Determination of Sodium, Calcium, Zinc and Phosphorus Ashing Alkali Fusion-Inductively Coupled Plasma Emission Spectrometry Coupled inductor Inductive coupling+ lead ore inductively coupled plasma Inductively Coupled Plasma Characterization Inductively Coupled Plasma Spectrometer Verification Inductive coupling standard Inductively Coupled Plasma Emission Spectroscopy plasma emission Chromium ion spectrum Determination of Arsenic, Copper and Zinc in Lead Concentrate by Inductively Coupled Plasma Atomic Emission Spectrometry Inductively Coupled Plasma Characterization plasma emission spectrometry Coupled inductor Inductively Coupled Plasma Emission Nickel content coupled plasma inductive plasma Zinc ion content in water Inductively Coupled Plasma Quartz Phosphorus content in nickel ore Nickel content Chrome Ore Zinc and phosphorus content Determination of nickel ions in water spectral chromium ion plasma emission spectrometry Nickel content lead in ore Phosphorus content in chrome ore Chromium ion content in water inductively coupled plasma optical emission spectrometry Inductively Coupled Plasma Mass Spectrometry for Lead in Water Inductively Coupled Plasma Lead Alloy Inductively Coupled Plasma Emission Spectroscopy Ore Determination of Phosphorus Content in Cobalt Ore by Inductive Coupling Determination of phosphorus content in iron ore by inductive coupling Determination of phosphorus content in iron ore by inductive coupling Determination of phosphorus content in iron ore by inductive coupling CuTiTantalum Inductively Coupled Plasma Mass Spectrometry ll Chromium ion content in reservoir Determination of nickel content Method for determination of phosphorus ions in solids

Introduction

Technical background of the standard

As an industry specification for entry-exit inspection and quarantine, this standard fills the technical gap in the simultaneous detection of multiple elements in chromium ore. Compared with the traditional chemical analysis method, the use of inductively coupled plasma emission spectrometer can increase the detection efficiency by 5-8 times, and simultaneously realize the joint determination of five elements, Pb, Zn, P, Ti, and Ni.

Detailed explanation of the principle of the method

The sample was melted in a Na₂CO₃-Na₂B₄O₇ mixed flux (2:1) at 950℃ for 30 minutes, and then extracted with 10% hydrochloric acid. The intensity of the characteristic spectral line generated by plasma excitation is proportional to the element concentration, and is quantified by the standard curve method.

Element	Detection Range(%)	Characteristic Wavelength(nm)	Precision Formula
Pb	0.002-2.00	220.353	r=0.0183ln(x)+0.0599
Zn	0.005-1.00	213.856	r=0.031x+0.027
P	0.001-1.00	213.618	r=0.0918x+0.0029
Ti	0.005-2.00	323.452	r=0.0226ln(x)+0.0716
Ni	0.005-5.00	231.604	r=0.053x+0.022

Key operational points

Actual case: The test results of a chrome ore sample showed that when using the Thermo iCAP 7400, the RF power should be maintained at 1200W and the atomizing gas flow rate should be 0.6L/min to obtain the best signal-to-noise ratio. When the Pb content was 0.15%, the RSD of repeated determinations was <2.3%.

Pre-treatment precautions:

The sample must pass through a 149μm sieve
A platinum crucible must be used during the melting process to avoid heavy metal contamination
GB/T 6682 grade 3 water must be used for constant volume

Implementation suggestions

1. The standard curve configuration should cover 1.5-2 times the expected concentration. It is recommended to use the 5-point series in Appendix A

2. Regularly use the JJG 015 specification to calibrate instrument performance

3. For high-titanium samples, it is recommended to use the 323.452nm spectral line to avoid spectral interference

More samples: QC/T 942-2021 GB 18306-2015 GB 50021-2001(2009)

Sample only — not a preview of SN/T 5347.2-2021

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