Field Analytical Chemistry & Technology最新文献_第6页

Development of a fluorometric sensor for the measurement of phycobilin pigment and application to freshwater phytoplankton 藻胆素荧光传感器的研制及其在淡水浮游植物中的应用

Field Analytical Chemistry & Technology Pub Date : 2000-02-16 DOI: 10.1002/(SICI)1520-6521(2000)4:1<53::AID-FACT6>3.0.CO;2-C

Ryoichi Asai, Scott McNiven, Kazunori Ikebukuro, Isao Karube, Yasuo Horiguchi, Shuichi Uchiyama, Akira Yoshida, Yuzo Masuda

{"title":"Development of a fluorometric sensor for the measurement of phycobilin pigment and application to freshwater phytoplankton","authors":"Ryoichi Asai, Scott McNiven, Kazunori Ikebukuro, Isao Karube, Yasuo Horiguchi, Shuichi Uchiyama, Akira Yoshida, Yuzo Masuda","doi":"10.1002/(SICI)1520-6521(2000)4:1<53::AID-FACT6>3.0.CO;2-C","DOIUrl":"10.1002/(SICI)1520-6521(2000)4:1<53::AID-FACT6>3.0.CO;2-C","url":null,"abstract":"A two-channel fluorometric sensor system for the detection of the waterbloom phytoplankton Microcystis aeruginosa has been developed. Excitation wavelengths of 620 and 440 nm were used, the former for detecting the cyanobacteria themselves, and the latter for subtracting the interference due to eukaryotic algae present in the sample. The fluorescence of the cyanobacteria and eukaryotic algae was measured at 645 and 680 nm, respectively. A linear relationship between phycocyanin fluorescence was established for the species examined in the range of 10−4 to 100 g/ml−1 chlorophyll a. Furthermore, upon ultrasonic treatment of a colony of cyanobacteria, the relationship between fluorescence intensity and cell concentration was improved. Applied to real samples in Lake Kasumigaura, Japan, after ultrasonication, this fluorometric method could detect waterbloom. This system is capable of the rapid determination of phycocyanin; the time required for one measurement cycle is approximately 25 min including sonication and rinsing for 5 min. The detection limit of this method is suitable for detecting phycocyanin in the early stage of waterbloom formation. Furthermore, a device based on this system was used for the continuous in situ monitoring of phycocyanin in lake water. © 2000 John Wiley & Sons, Inc. Field Analyt Chem Technol 4: 53–61, 2000","PeriodicalId":100527,"journal":{"name":"Field Analytical Chemistry & Technology","volume":"4 1","pages":"53-61"},"PeriodicalIF":0.0,"publicationDate":"2000-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6521(2000)4:1<53::AID-FACT6>3.0.CO;2-C","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73488371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Advances in field-portable mobile GC/MS instrumentation 野外便携式移动气相色谱/质谱仪研究进展

Field Analytical Chemistry & Technology Pub Date : 2000-02-16 DOI: 10.1002/(SICI)1520-6521(2000)4:1<3::AID-FACT2>3.0.CO;2-M

Henk L.C. Meuzelaar, Jacek P. Dworzanski, Neil S. Arnold, William H. McClennen, David J. Wager

{"title":"Advances in field-portable mobile GC/MS instrumentation","authors":"Henk L.C. Meuzelaar, Jacek P. Dworzanski, Neil S. Arnold, William H. McClennen, David J. Wager","doi":"10.1002/(SICI)1520-6521(2000)4:1<3::AID-FACT2>3.0.CO;2-M","DOIUrl":"10.1002/(SICI)1520-6521(2000)4:1<3::AID-FACT2>3.0.CO;2-M","url":null,"abstract":"Both vehicle-portable and man-portable GC/MS techniques and applications are currently undergoing rapid further development. Vehicle-portable GC/MS technology is expanding into the area of temporally and spatially resolved mapping, formerly accessible only to stand-off methods. Also, unmanned vehicles such as UAVs and drones are expected to play an increasingly important role as experimental platforms for the future. Man-portable instrumentation appears to be evolving from the unwieldy “luggables” to the readily wearable backpacks and, possibly, even handhelds. In the next 5 to 10 years this may open the way for the “chemical Geiger counter” or “definitive electronic nose”. The above developments are discussed from the perspective of field-portable, mobile GC/MS, with special emphasis on performance breakthroughs leading to potentially new applications, rather than from a strictly historical point of view. © 2000 John Wiley & Sons, Inc. Field Analyt Chem Technol 4: 3–13, 2000","PeriodicalId":100527,"journal":{"name":"Field Analytical Chemistry & Technology","volume":"4 1","pages":"3-13"},"PeriodicalIF":0.0,"publicationDate":"2000-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6521(2000)4:1<3::AID-FACT2>3.0.CO;2-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82256332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 39

The shape of things to come 未来事物的形状

Field Analytical Chemistry & Technology Pub Date : 2000-02-16 DOI: 10.1002/(SICI)1520-6521(2000)4:1<1::AID-FACT1>3.0.CO;2-R

Henk L. C. Meuzelaar

引用次数: 0

Stimulation, simulation and field calibration 刺激，模拟和现场校准

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<327::AID-FACT1>3.0.CO;2-3

Henk L. C. Meuzelaar

引用次数: 0

Study of purified bacteria and viruses by pyrolysis mass spectrometry† 热解质谱法研究纯化细菌和病毒

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<357::AID-FACT5>3.0.CO;2-J

Steven Luo, Jeff Mohr, David Sickenberger, Alex Hryncewich

引用次数: 11

A rapid toxicological test method with luminous bacteria for laboratory and on-site assessment of wastes and contaminated soils 用于实验室和现场评价废物和污染土壤的发光细菌快速毒理学试验方法

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<329::AID-FACT2>3.0.CO;2-Z

Angelika Götzl, Hans Malissa, Wolfgang Riepe

引用次数: 3

Surface-enhanced Raman detection of chemical vapors with the use of personal dosimeters 使用个人剂量计对化学蒸气进行表面增强拉曼检测

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<346::AID-FACT4>3.0.CO;2-Q

T. Vo-Dinh, D. L. Stokes

引用次数: 19

A new all-season passive sampling system for monitoring NO2 in air 一种新型的全季节空气NO2被动采样系统

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<338::AID-FACT3>3.0.CO;2-U

Hongmao Tang, Thomas Lau, Bernie Brassard, Walter Cool

{"title":"A new all-season passive sampling system for monitoring NO2 in air","authors":"Hongmao Tang, Thomas Lau, Bernie Brassard, Walter Cool","doi":"10.1002/(SICI)1520-6521(1999)3:6<338::AID-FACT3>3.0.CO;2-U","DOIUrl":"https://doi.org/10.1002/(SICI)1520-6521(1999)3:6<338::AID-FACT3>3.0.CO;2-U","url":null,"abstract":"A new all-season passive sampling system for monitoring NO2 in air has been developed. This passive sampling system employs the same approach as the all-season sampling system for monitoring SO2 reported in FACT [Vol. 1(5), 1997] before, but a new collection medium (CHEMIX™) for sampling NO2 has been developed and is used. Compared to the existing collection media used for NO2 passive samplers, such as a triethanolamine (TEA)-coated cellulose fiber filter, CHEMIX™ is less affected by temperature and relative humidity, and has a higher sampling rate. This system has been extensively tested in the lab (temperature from −27 to 20 °C, relative humidity from 4 to 80%, and wind speed from 0.5 to 150 cm/s) and validated in the field in all climates. Comparing measurements obtained with the use of the new passive sampling system with equivalent measurements with the use of a continuous NO2 analyzer yielded an accuracy of greater than 85%. The new NO2 passive sampling system can be used to measure ambient NO2 concentrations ranging from 0.1 to 50 ppb based on a 1-month exposure period. © 1999 John Wiley & Sons, Inc. Field Analyt Chem Technol 3: 338–345, 1999","PeriodicalId":100527,"journal":{"name":"Field Analytical Chemistry & Technology","volume":"3 6","pages":"338-345"},"PeriodicalIF":0.0,"publicationDate":"2000-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/(SICI)1520-6521(1999)3:6<338::AID-FACT3>3.0.CO;2-U","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91798333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

Harsh-environment mass spectrometry workshop summary 恶劣环境质谱研讨会总结

Field Analytical Chemistry & Technology Pub Date : 2000-01-04 DOI: 10.1002/(SICI)1520-6521(1999)3:6<375::AID-FACT6>3.0.CO;2-C

David Fries, Tim Short

引用次数: 0

Biosensors based on enzyme inhibition: Detection of organophosphorus and carbamate insecticides and dithiocarbamate fungicides 基于酶抑制的生物传感器:有机磷、氨基甲酸酯类杀虫剂和二硫代氨基甲酸酯类杀菌剂的检测

Field Analytical Chemistry & Technology Pub Date : 1999-06-14 DOI: 10.1002/(SICI)1520-6521(1999)3:3<171::AID-FACT4>3.0.CO;2-R

Thierry Noguer, Béatrice Leca, Gérard Jeanty, Jean-Louis Marty

引用次数: 37