Zhanjun Zhu

Guangzhou Institute of Geochemistry

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Yi Liang

Guangzhou Institute of Geochemistry

Xiangying Zeng

Chinese Academy of Sciences

Zhiqiang Yu

Chinese Academy of Sciences

Biao Zhang

Fujian Provincial Hospital

Qian Song

Chinese Academy of Sciences

Shutao Gao

Guangzhou Institute of Geochemistry

Meng Deng

Luoyang Normal University

Jiabao Fang

Ningbo University of Technology

Mengru Jin

Mitchell Institute

Guolun Zhong

Ningbo University of Technology

Cooperative Institutions

Chinese Academy of Sciences

Guangzhou Institute of Geochemistry

University of Chinese Academy of Sciences

Ningbo University of Technology

Zhejiang University

Central South University

People's Hospital of Cangzhou

Center for Disease Control

Institute of Technology of Cambodia

Ningbo University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Two-dimensional gas chromatography coupled to isotope ratio mass spectrometry for determining high molecular weight polycyclic aromatic hydrocarbons in sediments

Journal of Chromatography A (2023)

Boyang Tian Shutao Gao Zhanjun Zhu Xiangying Zeng Yi Liang

Isotope-ratio mass spectrometry

Isotope Analysis

10.1016/j.chroma.2023.463879

Cite

Citations (6)

Presence of polycyclic aromatic compounds in river sediment and surrounding soil: Possible impact from shale gas wastewater

The Science of The Total Environment (2024)

Qian Song Shiyu Xiao Xiangying Zeng Biao Zhang Zhanjun Zhu

Shale Gas

10.1016/j.scitotenv.2024.176186

Cite

Citations (1)

Physical Modeling of the Cenozoic Deformation in Northern Qaidam Basin

Acta Geosicientia Sinica (2003)

Zhanjun Zhu

Three types of sandbox models with contractive substrate and one without contractive substrate were employed to study the deformation mechanism of Cenozoic structures in northern Qaidam Basin. The results indicate that the models with contractive substrate are characterized by the development of rearward - vergent thrusts. When the models were compressed from opposite directions, the development of forward - vergent thrusts was similar to that of rearward-vergent thrusts, whereas in the models with asymmetric compression the rearward-vergent thrusts were more developed, especially on the side with higher compression speed. In the models compressed only from one direction, rearward-vergent thrusts were well developed, while forward-vergent thrusts were rarely seen. These facts show that substrate contraction and asymmetric compression can facilitate the development of rearward-ver-gent thrusts. A comparison of the experimental results with actual sections in northern Qaidam Basin suggests that substrate contraction and asymmetric compression are probably responsible for the distinctive structures in this region, and the Cenozoic deformational structures must have resulted from the asymmetric lateral compression, mainly from Qilian Mountain, with the participation of substrate contraction.

Source

Cite

Citations (2)

Recognition Method of Tar Mats in Oil-gas Reservoirs——By Taking Wenliu Oilfield in Dongpu Depression for Example

Journal of Oil and Gas Technology (2007)

Zhanjun Zhu

Three tar mats of Well Wenjian3 were discovered and determined accurately in Wenliu Oilfield in Dongpu Depression by thin layer chromatogram-flame ionization detector(TLC-FID), whole hydrocarbon gas-chromatography, and the characteristics of reservoir sedimentology and logging response. Based on the research results of previous investigators, and combined with the research on tar mats of Well Wenjian3, three conditions of identifying tar mats are proposed, it includes that in the vertical distribution profile of gross composition of oil reservoir cores, there exist high content sections of polarity matter (more than 40 percent polarity matter content), and sudden changes in polarity matter content between the tar mats and oil layers can be seen. Tar mats are often found in condensate oil and gas reservoirs and light oil reservoirs, they are often situated in high porosity and high horizontal permeability sandstone layers. Tar mats separating reservoirs are organic insulating layer in oil-gas reservoirs. Tar mats act as organic insulating layer, but bitumen layer has no reservoir compartment. This is the intrinsical difference being ignored for ages between tar mats and bitumen sandstone. The condition applied to confirm tar mats is a supplement and achievement of previous research results.

tar (computing)

Source

Cite

Citations (0)

Geochemical characteristics and origin of tar mats in Eastern Block 25 in Wenliu Oilfield,Dongpu Depression

Petroleum Exploration and Development (2006)

Zhanjun Zhu

Flame ionization detector

tar (computing)

Alkane

Source

Cite

Citations (2)

Modulating Catalyst‐Reactant Interface Microenvironment for Efficient Photocatalysis on Bismuth Sulfide

Chemical Engineering & Technology (2023)

Hua Lu Xiuyue Jin Shuzhi Tong Mengru Jin Zhanjun Zhu

Abstract Pollution by organic dyes has received extensive attention due to their high toxicity, biohazard, and high stability in the natural environment, and the development of high‐efficiency dye degradation and heavy metal ion reduction technologies is urgently needed in photocatalysis. However, the interface microenvironment between catalyst and pollutant is often ignored, and the poor compatibility of the catalyst‐pollutant interface constrains further efficient catalysis. Herein, to improve the compatibility of the catalyst‐pollutant interface, a surfactant‐capping strategy for enhanced photocatalysis of rhodamine B (RhB) on one‐dimensional rod‐like Bi 2 S 3 nanocrystals was investigated. Specifically, polyvinylpyrrolidone (PVP)‐capped Bi 2 S 3 (Bi 2 S 3 ‐PVP) showed enhanced RhB degradation rate compared with pure Bi 2 S 3 , and further studies suggested enhanced reaction interface compatibility at the Bi 2 S 3 ‐PVP‐RhB interface. This work provides an interface microenvironment modulation strategy for improving photocatalytic performance towards organic dyes.

Rhodamine B

Polyvinylpyrrolidone

Bismuth

10.1002/ceat.202300108

Cite

Citations (4)

Saturated Hydrocarbon Characteristics in Source Rocks and Palaeo-environment Significance in Dongling Block of Songliao Basin

Journal of Oil and Gas Technology (2008)

Zhanjun Zhu Zhilin Zhang Lin Ren-zi

The paper is aimed to research the character of saturated hydrocarbon and confirm paleosedimentary environment of source rocks, including Yingcheng Formation, Huoshiling Formation and Quantou Formation in Dongling Block of the Songliao Basin. Based on GC/MS analysis data of saturation hydrocarbon of core extracts and methods of molecular organic geochemistry. The results show that the carbon number of n-alkanes is mostly unimodal distribution, and the nC16～nC18 was main peaks, which indicates evolutionary level of hydrocarbon source rocks was upper. The C29 sterane's 20S/(20S+20R) and αββ/(αββ+ααα) showed positive correlation, and 20S/(20S+20R) and αββ/(αββ+ααα) was about 0.4. All these results indicate the source rock organic matter is at mature stage, the hydrocarbon source rocks of Huoshiling formation in 2154.78m of well SN183 is better than other samples. The hydrocarbon source rock's Pr/Ph is in the range of 0.706～2.179. The content of gammacerane is relatively higher. The distribution patterns of sterane are characterized by C29C27C28. All facts show that source rocks are formed under shallow water. The organic matter of these source rocks mainly come from terrestrial higher plants with lower contribution from the few aquatic organisms, deposite in the weak oxidation-desoxidation condition and slightly brackish-brackish lacustrine environments.

Sterane

Source

Cite

Citations (1)

Equipment renewal during improvement of No.3 Sinter Plant of Ansteel

Zhanjun Zhu

According to the design of improvement of Ansteel No.3 Sinter Plant,some new type energy-saving equipment is suggested.The advantages of such equipment in the fields of energy consumption reducing,environmental protection and investment saving are explained.Such equipment can also be used in other sintering technology improving projects.

Investment

Consumption

Cite

Citations (0)

Determination of 27-deoxyactein in various specimens of Rhizoma Cimicifugae by RP-HPLC

Zhanjun Zhu

Objective To determine the content of 27-deoxyactein in various specimens of Rhizoma Cimicifugae by RP-HPLC.Methods The YMC-Pack ODS-C18 column(4.6 mm×150 mm,5 μm) was used.The mobile phrase consisted of acetonitrile-water-acid(40∶60∶1).The flow rate was 0.6 mL·min-1.The column temperature was 26 ℃.The refractive index detector was used.Results The linear range was 2.588~20.7 μg(r=0.999 7). The average recovery was 97.5% with RSD of 2.75%(n=5).Conclusion This method is simple and easy to perform and the results are reliable.It provides a reference standard for the quality control of Rhizoma Cimicifugae.

Linear range

Content determination

Cite

Citations (1)

Analysis of thyroid nodules of children aged 8-10 years in different water iodine areas in Cangzhou City of Heibei Province

Chin J Endemiol (2018)

Li ShunLi Songchen Wen Yuanman Hu Hua Liu Zhanjun Zhu

Objective To understand the prevalence of thyroid nodules of children lived in different water iodine areas in Cangzhou City. Methods From Oct. 2015 to Jan. 2017, 15 villages were selected as monitoring sites in Cangzhou, two drinking water samples were collected from each survey site (all had centralized water supply), and the water iodine content was determined. A total of 100 children aged 8 to 10 (half male and female) were examined for thyroid nodules, and at least 50 children (half male and half female) were selected to detect urinary iodine content. In the high iodine water counties, the monitoring sites of iodine salt was according to National Iodine Deficiency Monitoring Program; in the monitoring sites of iodine salt supplied counties, students in the monitored village were asked to detect urinary iodine and household salt samples were collected to monitor salt iodine. In the high iodine area, the salt iodine test was carried out by semi-quantitative method. In the non-high iodine area, the salt iodine content of the iodized salt monitoring sites was determined by direct titration, the salt iodine content of Chuan salt and other intensified edible salt was tested by arbitration (GB/T 13025.7-2012). Water iodine and urinary iodine were tested by arsenic and cerium catalytic spectrophotometry. Results Water iodine content was 28.2-1 128.0 μg/L in 15 villages; a total of 1 066 urine samples were examined, the median of uriary iodine in each village was 102.6-1 162.0 μg/L; a total of 1 575 children aged 8 to 10 years were examined, among them, 125 cases of thyroid nodules were detected; thyroid nodules detection rate was 7.9%. The prevalence of male was 7.0% (61/871), and the prevalence of female was 9.1% (64/704), there was no significant difference in the detection rate of thyroid nodules between different sex (χ2= 2.07, P > 0.05); The detection rate of thyroid nodules were 4.5% (23/508), 7.8% (4/51), 11.6% (59/507) in children with urinary iodine at the appropriate level (100-< 200 μg/L), the appropriate level (200-< 300 μg/L) and iodine excess level (≥300 μg/L), the difference of thyroid nodules in children with different levels of urinary iodine detection rate was statistically significant (χ2= 17.30, P < 0.01). The difference of prevalence of thyroid nodules in children aged 8 to 10 years with water iodine concentrations of 10-< 100, 100-< 300 and ≥300 μg/L was statistically significant [2.9% (13/448), 7.9% (25/317), 10.7% (87/810), χ2= 23.86, P < 0.05]. The patients with unilateral thyroid nodule accounted for 64.8% (81/125); the patients with multiple thyroid nodules counted for 58.4% (73/125), and 34.2% (13/38), 69.0% (60/87) in areas with iodine content less than 300 μg/L and no less than 300 μg/L, the difference between the two was statistically significant (χ2= 13.14, P < 0.01). A total of 1 800 salt samples were collected from the high water iodine counties, of which 1 779 were iodine-free salt, the rate of iodine-free salt was 98.8%; a total of 190 salt samples were collected in student family, in the 4 iodized salt monitoring sites, the salt iodine median of resident's edible salt was 0.0 mg/kg. Conclusion The prevalence of thyroid nodules in children aged 8-10 years may be related to high water iodine in Cangzhou City; children with multiple thyroid nodules is also significantly higher in water iodine content greater than 300 μg/L areas. Key words: Thyroid nodules; Water; Urine; Iodine

Iodised salt

10.3760/cma.j.issn.2095-4255.2018.02.012

Cite

Citations (0)