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    Study on the Variation of Three Solvents in Black Gel Pen Handwriting with Writing Time Based on Gas Chromatography Technology
    HE Haiyang, ZHAO Pengcheng, HE Ning, NI Yunchang, LI Zehan
    2021, 57(9): 769-775. DOI: 10.11973/lhjy-hx202109001
    Abstract PDF
    Determination of Two Photoinitiator Residues in Toy Coatings by Ultrasonic Extraction-UHPLC-MS/MS
    TAO Xiaomei, LUO Xiaofang, HU Aisheng
    2021, 57(9): 776-780. DOI: 10.11973/lhjy-hx202109002
    Abstract PDF
    Analysis of Volatile Solvent Components in Ink Blot Samples Prepared by 84 Inks from 3 Common Brands of Ink-Jet Printers by GC-MS
    WANG Shuchao, CUI Lan, SONG Hui, XU Shuang, ZHAO Pengcheng, CHEN Xiaohong
    2021, 57(9): 781-787. DOI: 10.11973/lhjy-hx202109003
    Abstract PDF
    Determination of 10 Elements in Antimony Ore by Inductively Coupled Plasma Atom Emission Spectrometry with Sealed Acid Digestion at High Pressure
    ZENG Jiangping, WANG Jiasong, ZHENG Zhikang, WANG Na, WANG Liqiang, WEI Shuang, WU Liangying
    2021, 57(9): 788-793. DOI: 10.11973/lhjy-hx202109004
    Abstract PDF
    Determination of Nitrite-Nitrogen, Ammonia-Nitrogen and Nitrate-Nitrogen in Soil and Sediment by Gas- Phase Molecular Absorption Spectrometry
    LI Aimin, WU Hao, LI Huaxin, HE Xiaomin
    2021, 57(9): 794-798. DOI: 10.11973/lhjy-hx202109005
    Abstract PDF
    Determination of Six Heavy Metal Elements in Soil by Inductively Coupled Plasma Atomic Emission Spectrometry after Microwave Digestion with Four Acids
    ZHOU Fuqiang, LIU Song, RAN Fei, HUANG Fenghong
    2021, 57(9): 799-803. DOI: 10.11973/lhjy-hx202109006
    Abstract PDF
    Introduction and Application of Main Pretreatment Methods for Detection of Pesticide Residues in Grain
    KONG Ya, CAO Hui, XU Fei, YUAN Min, YE Tai, YU Jinsong, HAO Liling
    2021, 57(9): 816-823. DOI: 10.11973/lhjy-hx202109011
    Abstract PDF
    Study on the Feasibility of Strontium Internal Standard Method in the Determination of Uranium in Natural Uranium Product (U3O8) by Solution Sampling-X-Ray Fluorescence Spectrometry
    LIU Jinliang, SONG Maosheng, ZHANG Xin, YUE Zhonghui, FAN Pengfei
    2021, 57(9): 824-829. DOI: 10.11973/lhjy-hx202109012
    Abstract PDF
    Determination of Phosphorus in Hydrogenation Catalyst by Single Wavelength X-Ray Fluorescence Spectrometry
    HUANG Xinbo, WANG Peng, ZHAO Ronglin, WANG Shaojun, LING Fengxiang
    2021, 57(9): 830-833. DOI: 10.11973/lhjy-hx202109013
    Abstract PDF
    Determination of Seven Oxides in Al-Mg and Zr Refractory Materials Containing Carbon and Silicon Carbide by X-Ray Fluorescence Spectrometry after Fusion Sample Preparation
    ZHANG Qin, ZHOU Wenwen
    2021, 57(9): 834-839. DOI: 10.11973/lhjy-hx202109014
    Abstract PDF
    Determination of Nine Major and Minor Elements in Si-Ca-Ba Alloy by X-Ray Fluorescence Spectrometry with Two-Step Fusion Sample Preparation
    YU Lihui
    2021, 57(9): 840-844. DOI: 10.11973/lhjy-hx202109015
    Abstract PDF
    Determination of Major and Minor Components in Dolomite by X-Ray Fluorescence Spectrometry after Fusion Sample Preparation
    LIAO Jianrong, LUO Mingrong
    2021, 57(9): 845-849. DOI: 10.11973/lhjy-hx202109016
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    Determination of Major and Minor Elements in Flue Gas Desulfurization Gypsum from Fossil Power Plant by X-Ray Fluorescence Spectrometry after Fusion Sample Preparation
    GUO Jin, ZHANG Mengqun, WU Suozhen
    2021, 57(9): 850-854. DOI: 10.11973/lhjy-hx202109017
    Abstract PDF
    Simultaneous Determination of Fluorite, Barite and Celestite in Rare Earth Ores by X-Ray Fluorescence Spectrometry after Fusion Sample Preparation
    LI Keji, ZHANG Lijun, XIONG Wenliang
    2021, 57(9): 855-859. DOI: 10.11973/lhjy-hx202109018
    Abstract PDF
    Determination of Major and Minor Components in Silicate and Coal Ash by X-Ray Fluorescence Spectrometry after Fusion Sample Preparation
    HAN Zhiyuan, ZHANG Min, LI Kailin, CHEN Wenmei
    2021, 57(9): 860-864. DOI: 10.11973/lhjy-hx202109019
    Abstract PDF