Review
Chemistry, Analytical
Guanghui Niu, Alexander Knodel, Sebastian Burhenn, Sebastian Brandt, Joachim Franzke
Summary: The development of miniature, sensitive, high throughput, and in-situ analytical instruments using dielectric barrier discharge (DBD) has become a hot topic in modern analytical chemistry. DBD offers advantages such as easy operation, simple configuration, ambient working temperature and pressure, low power consumption, and miniature dimension. Its applications in analytical atomic spectrometry include serving as excitation or atomization sources in AES, AAS, and AFS, as well as functioning as a vapor generation system.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Liangbo He, Yao Lin, Yubin Su, Yuanyuan Li, Yurong Deng, Chengbin Zheng
Summary: In this study, a lithium-ion battery powered compact handheld optical emission spectrometer (OES) was developed for sensitive field analysis of waterborne arsenic. By utilizing electro-chemical hydride generation (ECHG) and miniaturized ballpoint discharge (mu PD) as sample introduction means and excitation source, the system showed promising potential for the sensitive, cost-effective, and environmentally friendly analysis of waterborne arsenic.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Jiahui Yang, Yao Lin, Liangbo He, Yubin Su, Xiandeng Hou, Yurong Deng, Chengbin Zheng
Summary: This study developed a portable and compact system device for field speciation analyses of mercury and inorganic selenium using 3D printing technology. The device showed improved accuracy and practicality in analysis, highlighting the potential of 3D printing for creating simple and efficient atomic spectrometers for field elemental speciation analysis.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Meitong Liu, Lan Ding, Jixin Liu, Xuefei Mao, Xing Na, Yunbin Shao
Summary: A novel method was developed for lead detection in blood samples, featuring in situ preconcentration and hydride generation. This method showed high sensitivity and accuracy, rapid analysis, and promising application prospects.
ANALYTICAL SCIENCES
(2021)
Article
Chemistry, Analytical
Yujia Deng, Kai Li, Xiandeng Hou, Xiaoming Jiang
Summary: The developed method utilizes a miniaturized dielectric barrier discharge microplasma atomic emission spectrometer coupled with a tungsten coil (W-coil) for on-line hydride generation trapping-electrothermal vaporization, resulting in fast, low-cost, and sensitive determination of trace cadmium. By adopting a horizontally fixed W-coil and flow injection mode, the total sample throughput can be greatly improved.
Article
Chemistry, Analytical
Qian He, Ningxin Zhang, Yifan Qiao, Chenchen Li, Jing Zhang
Summary: Pneumatic nebulization technology allows for the spontaneous conversion of mercury ions into volatile elemental mercury through aqueous microdroplets without the need for added redox agents, electricity, or radiation. This innovative and low-energy method has the potential to contribute to green chemistry and the global atmospheric mercury cycle.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Tengpeng Liu, Jixin Liu, Xuefei Mao, Xing Na, Yunbin Shao, Yongzhong Qian
Summary: In this study, a foamed nickel trap was used as a gas-phase enrichment material to preconcentrate and release Cd. The developed method showed high sensitivity and precision for the direct detection of Cd in soil samples. It eliminated the need for acid digestion and has potential for miniaturization and portability in the future.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Liang Dong, Hanjiao Chen, Yongyan Ning, Yaowen He, Ying Yu, Ying Gao
Summary: Photochemical vapor generation (PVG) is an alternative sample introduction method in atomic spectrometry, and the addition of transition metals can enhance its efficiency. This study introduced vanadium species as novel sensitizers in PVG and applied it for the determination of tellurium.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yaru Zhang, Xing Na, Yunbin Shao, Jixin Liu, Di Tian, Xuefei Mao
Summary: The developed method combining ultrasonic assisted slurry sampling and in-situ DBD trap-OES technology is capable of fast determination of arsenic in soil. With simple pretreatment procedures, low detection limit, and good accuracy, it is suitable for soil analysis.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Yubin Su, Yao Lin, Rui Yang, Liangbo He, Jiahui Yang, Xiaoming Jiang, Chengbin Zheng
Summary: A versatile high-throughput photochemical reactor was developed for the rapid and sensitive determination of mercury, nickel, and selenium. By coupling photochemical vapor generation (PVG) to atomic fluorescence spectrometry (AFS) or point discharge optical emission spectrometry (μPD-OES), the reactor achieved high throughput, high sensitivity, and eliminated interference from transition metal ions. The practicality of the reactor was demonstrated through successful detection in various certified reference materials.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Xing Liu, Guo Cheng, Chun Yang, Guan Wang, Shuyang Li, Yixiao Li, Hongtao Zheng, Shenghong Hu, Zhenli Zhu
Summary: A novel sensitive method for As determination was developed based on UV-assisted liquid spray dielectric barrier discharge (UV-LSDBD) plasma-induced vapor generation. UV irradiation greatly facilitates As vapor generation in LSDBD, leading to a 16-fold enhancement of the As signal. The method offers better tolerance to coexisting ions, with a detection limit of 0.13 μg/L and a relative standard deviation of 3.2% (n = 7). The accuracy and effectiveness of the method were further verified by analysis of reference and real water samples.
Article
Chemistry, Analytical
Yaru Zhang, Jixin Liu, Xuefei Mao, Xing Na, Di Tian, Yongzhong Qian
Summary: A novel field analysis method for analyzing lead in environmental water samples was developed using a portable optical emission spectrometric instrument coupled with solid acid hydride generation and in situ dielectric barrier discharge trap. The method eliminated moisture interference and transportation issues of liquid acid, achieving a low detection limit and high sensitivity.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Shuang Liu, Qing-Yun Yang, Shuai Chen, Yong-Liang Yu, Jian-Hua Wang
Summary: In this study, a novel approach combining ultrasonic nebulization-gas phase enrichment and in situ microplasma desorption sampling with a miniature DBD-OES device was developed for fast, sensitive, batch, and multielement analysis of trace heavy metals in complex matrices. The method allows for quick separation of volatile heavy metal species from the complex matrix, achieving multielement OES analysis. The accuracy and practicality of the method were verified using certified reference materials.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Julieta R. Camurati, Agustin Londonio, Patricia Smichowski, Vanesa N. Salomone
Summary: The study utilized an on-line HPLC-UV-thermo-oxidation-HGAFS system to analyze arsenic speciation in dried seaweeds, showing that arsenosugars are the most abundant compounds in the investigated seaweeds. The method provided an accurate analysis approach for quantifying arsenic compounds.
Article
Engineering, Chemical
Claus-Peter Klages, Lars Broecker, Meret Leonie Betz, Vitaly Raev
Summary: The number densities of oxygen atoms in Ar-O-2 mixtures with small initial O-2 fractions flowing through a dielectric-barrier discharge were calculated using a plug-flow reactor model. The calculations were compared with experimental results and optical emission spectroscopic measurements.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Chemistry, Analytical
Meitong Liu, Jixin Liu, Xuefei Mao, Xing Na, Lan Ding, Yongzhong Qian
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Applied
Guoying Chen, Bunhong Lai, Tuanwei Chen, Hetong Lin, Xuefei Mao
Summary: Brief soaking of rice at above gelatinization temperature for 10 minutes can reduce iAs content in rice by up to 48.4%. A soaking protocol has been developed for public use, reducing iAs in non-waxy white rice by an average of 39.5 +/- 6.6% (n = 12). This method effectively cuts iAs in cooked white rice, potentially reducing chronic iAs exposure and cancer risk for rice consumers.
Article
Chemistry, Analytical
Tengpeng Liu, Meitong Liu, Jixin Liu, Xuefei Mao, Shanshan Zhang, Yunbin Shao, Xing Na, Guoying Chen, Yongzhong Qian
ANALYTICA CHIMICA ACTA
(2020)
Review
Agriculture, Multidisciplinary
Xue Li, Tengpeng Liu, Chunyan Chang, Yajie Lei, Xuefei Mao
Summary: Agrometallomics, as an independent interdisciplinary field, plays a crucial role in understanding the molecular and organismic mechanisms in agriculture. Advanced analytical approaches for metallic elements are necessary for investigating their existence, concentration, distribution, speciation, and forms in agricultural lives and media.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Review
Chemistry, Analytical
Yaru Zhang, Jixin Liu, Xuefei Mao, Guoying Chen, Di Tian
Summary: This review highlights the potential and application of microplasma-based optical emission spectrometry (OES) in elemental field analysis, focusing on the advances in portable/miniaturized OES systems and four key aspects in sample analysis. Limitations and potential development trends of portable microplasma-based OES are also discussed.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Siyu Gu, Xudong Huang, Mingli Chen, Jixin Liu, Xuefei Mao, Xing Na, Guoying Chen, Yunbin Shao
Summary: A novel IDBD reactor coupled with ETV was established for arsenic determination, investigating the evolution mechanisms of arsenic species using XPS. DBDA atomizes arsenic nanoparticles while DBDT traps and releases arsenic oxides, enhancing sensitivity and precision in seafood sample analysis. The method shows potential for rapid arsenic analysis based on direct solid sampling ETV instrumentation.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Zhaohui Lv, Jixin Liu, Xuefei Mao, Xing Na, Yongzhong Qian
Summary: In this study, a novel direct sampling mercury analyzer coupled with a miniature atomic absorption spectrometer was fabricated for sensitive determination of mercury in soil by utilizing a small-size inbuilt-metal ceramic heater as a solid sampling electrothermal vaporizer. The results showed that the proposed method had favorable analytical accuracy and precision, and the fabricated instrumentation was small and had low power consumption, making it suitable for portable and rapid detection of mercury in soil.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Tengpeng Liu, Jixin Liu, Xuefei Mao, Xudong Huang, Yongzhong Qian
Summary: In this work, a novel composite Pt/Ni trap was fabricated to trap Hg and Cd simultaneously, and a solid sampling Hg-Cd analyzer was developed using an MCH, a composite Pt/Ni trap, and an AFS. The Pt/Ni trap fulfilled the complete trapping and fast release of Hg and Cd. Under optimized conditions, the method detection limits of Hg and Cd reached 0.4 μg/kg and 0.04 μg/kg, the RSDs were within 12% and 8%, and the recoveries ranged from 96% to 105%. The proposed Hg-Cd analyzer is suitable for rapid detection of Hg and Cd in soil samples.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Huifang Sun, Jixin Liu, Xuefei Mao, Chunhui Wang, Yabo Zhao, Yongzhong Qian
Summary: At present, it is a challenge to immediately monitor urinary arsenic for treating arsenic poisoning patients. In this study, a silicon nitride rod was utilized as a sample carrier, electric heater, and high voltage electrode for dielectric barrier discharge vaporization (DBDV). A direct analytical method for arsenic in urine without sample digestion was developed using atomic fluorescence spectrometer (AFS) as a model detector. The optimized method achieved a detection limit of 0.014 μg/L arsenic with favorable precision and accuracy for real sample analysis. This direct sampling DBDV method provides a fast, sensitive, and precise detection of ultratrace arsenic in urine samples.
ANALYTICA CHIMICA ACTA
(2023)
Article
Multidisciplinary Sciences
Shuanglei Xie, Chuanqi Pan, Yuan Yao, Xianglin Yu, Ze Xu, Weidong Yuan, Yi Zhang, Ning Guo, Xue Li, Xuefei Mao, Shengqiang Xiao, Junbo Li, Yanbing Guo
Summary: Hydrogen-substituted graphdiyne (HsGDY) was successfully fabricated and employed as an effective adsorbent to remove lead ions from sewage and lead-containing blood. HsGDY exhibited a high adsorption capacity of lead, approximately five times larger than that of graphdiyne (GDY), due to its unique hexagonal hole and stack mode that allows for more lead adsorption. The strong bonding of lead atom on HsGDY and the easy regeneration process further enhance its performance as a promising adsorbent for lead removal.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Analytical
Tengpeng Liu, Jixin Liu, Xuefei Mao, Xing Na, Yunbin Shao, Yongzhong Qian
Summary: In this study, a foamed nickel trap was used as a gas-phase enrichment material to preconcentrate and release Cd. The developed method showed high sensitivity and precision for the direct detection of Cd in soil samples. It eliminated the need for acid digestion and has potential for miniaturization and portability in the future.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Yaru Zhang, Jixin Liu, Xuefei Mao, Xing Na, Di Tian, Yongzhong Qian
Summary: A novel field analysis method for analyzing lead in environmental water samples was developed using a portable optical emission spectrometric instrument coupled with solid acid hydride generation and in situ dielectric barrier discharge trap. The method eliminated moisture interference and transportation issues of liquid acid, achieving a low detection limit and high sensitivity.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Analytical
Yaru Zhang, Xuefei Mao, Di Tian, Jixin Liu, Chunsheng Li
Summary: A novel method using low-cost miniaturized hydride generation optical emission spectrometry equipment coupled with an in situ dielectric barrier discharge trap was developed for the determination of As in edible seaweed samples. The method significantly improved the linear range and sensitivity, with a detection limit of 0.2 μg L-1. Application of the method to seaweed samples yielded a method detection limit of 0.25 mg kg(-1) with good accuracy and precision.
ANALYTICAL METHODS
(2021)
Article
Chemistry, Analytical
Peizhe Xing, Xue Li, Li Feng, Xuefei Mao
Summary: A novel solid sampling method for Cd in grain samples was established using ETV-AAS, demonstrating fast detection of Cd within 10 minutes by ashing and vaporizing Cd.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)