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Beijing Aozuo Ecological Instrument Co., Ltd
Algae analyzer
NegotiableUpdate on 12/22
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Overview
Algae analyzer is mainly used for online monitoring of live phytoplankton, measuring their biomass and classifying them. It can be widely used for long-term online monitoring of algal blooms, research on primary productivity and other physiological characteristics of phytoplankton. The biggest feature of the system is that it can eliminate the interference of non active substances and humus on the monitoring process; At the same time, the system uses a continuous excitation light source to obtain a continuous excitation spectrum, making algae identification more accurate.
Product Details
1、 Purpose:
Algae analyzerMainly used for online monitoring of live phytoplankton, measuring their biomass and classifying them. It can be widely used for long-term online monitoring of algal blooms, research on primary productivity and other physiological characteristics of phytoplankton. The biggest feature of the system is that it can eliminate the interference of non active substances and humus on the monitoring process; At the same time, the system uses a continuous excitation light source to obtain a continuous excitation spectrum, making algae identification more accurate.
2、 Principle
Delayed fluorescence technology only measures photosynthetic active algae, eliminates interference from dead algae and humus, and more accurately monitors the growth status of algae.
Theoretical Background
During the photosynthesis process of plants, a portion of the light absorbed by the plant is released in the form of fluorescence, which is called transient fluorescence before the light is utilized by PSII; Before the charge recombination excites chlorophyll molecules, a time-dependent reduction reaction occurs, which leads to delayed release of light, known as delayed fluorescence (DF). Delayed fluorescence spectroscopy revealed the electron transfer efficiency of PSI chlorophyll P700 to PSII. Delayed fluorescence spectroscopy technology is mainly used for measuring two aspects of delayed fluorescence: delayed fluorescence kinetic characteristics, that is, the extinction process of delayed fluorescence; Delayed fluorescence spectroscopy, i.e. the variation of DF0 with different excitation light source wavelengths. These two methods are used to measure the biomass and composition of living algae, respectively.
Delayed fluorescence is generated by charge recombination caused by electron reflux, therefore, only cells with photosynthetic activity can produce delayed fluorescence. This technology has significant advantages compared to instantaneous fluorescence technology, as it is not affected by the interference of inactive substances and humus. This can play a decisive role in shallow lakes or rivers, especially in areas where resuspension and flooding often occur, leading to the introduction of a certain amount of degraded algae or algae without photosynthetic function into the water. Delayed fluorescence technology has gradually become a hot topic in current algae research.
3、 System functions
Measure the concentration of live algae and eliminate the interference of non active substances and humus on the monitoring process;
Identification of algae species: Using a continuous excitation light source, the standard configuration can identify four types of algae: blue-green algae, green algae (including green algae, naked algae, etc.), diatoms (including diatoms, gold algae, yellow algae, etc.), and cryptoalgae. The enhanced version can also identify red algae (commonly found in seawater);
Automated measurement of dynamic changes in photosynthetic rate in the field for the study of primary productivity of algae;
Continuous monitoring of the process of algae from generation to extinction;
4、 Composition
Host, automatic sampling unit, automatic cleaning unit, other accessories, etc
Delayed fluorescence technology eliminates the interference of non active substances and humic substances,
Only measuring live phytoplankton;
The system design meets the requirements of online measurement;
Easy data download, one click download to computer after WiFi connection device;
Can achieve remote control, remote data calibration, and remote transmission of the system;
Highly integrated system with small size;
Free choice of testing mode;
6、 Main technical indicators
Measurement principle: Delayed fluorescence technology, only measuring live algae
Measurement parameters: live phytoplankton biomass, composition
Photosynthetic characteristics;
Optional measurement parameters: enhanced plant community identification
Light photosynthesis relationship curve;
Algae grouping characteristic spectra: 6 groups
Communication: WiFi connection, enter the operation interface, for
Both Windows operating system and Apple Mac system are compatible;
Resolution: Blue algae, green algae (including green algae, naked algae, etc.)
Diatoms (including diatoms, diatoms, yellow algae, etc.) and cryptoalgae
4 types of algae, the enhanced version can also recognize red algae with an accuracy of ± 5%;
Measurement method: It can be used for automatic online measurement in the field or portable measurement;
Sampling: 12VDC sampling pump, tube length 5 meters
Working mode: automatic/manual
Sampling frequency: 6-10 times/hour;
Detection limit: 1-5ugCHl-a • l-1;
Voltage: 110-230VAC;
Power: 100W;
Size: 300x400x500mm;
Other: Optional GPS positioning
Automatic cleaning function: can freely set the cleaning cycle
Online monitoring of Lake Balaton in Hungary - Study on the stability of phytoplankton communities in highly dynamic environments
In 2003-2004, water ecological factors such as water temperature, total radiation, vertical attenuation of light, and internal P load were monitored in the Balaton Lake area. Time series data of four colors of photosynthetic sensitive algae were monitored on a daily basis, and the obtained data was used to analyze the seasonal variation patterns of phytoplankton and simulate the occurrence of various algal blooms. The experimental results indicate that the above measured data can sufficiently simulate the formation and decay of various algal blooms.
The application of Trios online water quality analyzer to monitor changes in dissolved oxygen in lake water was used to verify DF delayed fluorescence. The results showed that although the quantification of dissolved oxygen is uncertain, there is a strong correlation between delayed fluorescence and dissolved oxygen.
Ecological environment monitoring of Poyang Lake and Yangtze River water bodies
Research institutions such as Poyang Lake Hydrological Bureau and Yangtze River Water Resources Protection Science Research Institute use DF live phytoplankton online monitoring devices to monitor changes in the ecological environment of Poyang Lake and Yangtze River water bodies.
Algae analyzerMainly used for online monitoring of live phytoplankton, measuring their biomass and classifying them. It can be widely used for long-term online monitoring of algal blooms, research on primary productivity and other physiological characteristics of phytoplankton. The biggest feature of the system is that it can eliminate the interference of non active substances and humus on the monitoring process; At the same time, the system uses a continuous excitation light source to obtain a continuous excitation spectrum, making algae identification more accurate.
2、 Principle
Delayed fluorescence technology only measures photosynthetic active algae, eliminates interference from dead algae and humus, and more accurately monitors the growth status of algae.
Theoretical Background
During the photosynthesis process of plants, a portion of the light absorbed by the plant is released in the form of fluorescence, which is called transient fluorescence before the light is utilized by PSII; Before the charge recombination excites chlorophyll molecules, a time-dependent reduction reaction occurs, which leads to delayed release of light, known as delayed fluorescence (DF). Delayed fluorescence spectroscopy revealed the electron transfer efficiency of PSI chlorophyll P700 to PSII. Delayed fluorescence spectroscopy technology is mainly used for measuring two aspects of delayed fluorescence: delayed fluorescence kinetic characteristics, that is, the extinction process of delayed fluorescence; Delayed fluorescence spectroscopy, i.e. the variation of DF0 with different excitation light source wavelengths. These two methods are used to measure the biomass and composition of living algae, respectively.
Delayed fluorescence is generated by charge recombination caused by electron reflux, therefore, only cells with photosynthetic activity can produce delayed fluorescence. This technology has significant advantages compared to instantaneous fluorescence technology, as it is not affected by the interference of inactive substances and humus. This can play a decisive role in shallow lakes or rivers, especially in areas where resuspension and flooding often occur, leading to the introduction of a certain amount of degraded algae or algae without photosynthetic function into the water. Delayed fluorescence technology has gradually become a hot topic in current algae research.
3、 System functions
Measure the concentration of live algae and eliminate the interference of non active substances and humus on the monitoring process;
Identification of algae species: Using a continuous excitation light source, the standard configuration can identify four types of algae: blue-green algae, green algae (including green algae, naked algae, etc.), diatoms (including diatoms, gold algae, yellow algae, etc.), and cryptoalgae. The enhanced version can also identify red algae (commonly found in seawater);
Automated measurement of dynamic changes in photosynthetic rate in the field for the study of primary productivity of algae;
Continuous monitoring of the process of algae from generation to extinction;
4、 Composition
Host, automatic sampling unit, automatic cleaning unit, other accessories, etc
Delayed fluorescence technology eliminates the interference of non active substances and humic substances,
Only measuring live phytoplankton;
The system design meets the requirements of online measurement;
Easy data download, one click download to computer after WiFi connection device;
Can achieve remote control, remote data calibration, and remote transmission of the system;
Highly integrated system with small size;
Free choice of testing mode;
6、 Main technical indicators
Measurement principle: Delayed fluorescence technology, only measuring live algae
Measurement parameters: live phytoplankton biomass, composition
Photosynthetic characteristics;
Optional measurement parameters: enhanced plant community identification
Light photosynthesis relationship curve;
Algae grouping characteristic spectra: 6 groups
Communication: WiFi connection, enter the operation interface, for
Both Windows operating system and Apple Mac system are compatible;
Resolution: Blue algae, green algae (including green algae, naked algae, etc.)
Diatoms (including diatoms, diatoms, yellow algae, etc.) and cryptoalgae
4 types of algae, the enhanced version can also recognize red algae with an accuracy of ± 5%;
Measurement method: It can be used for automatic online measurement in the field or portable measurement;
Sampling: 12VDC sampling pump, tube length 5 meters
Working mode: automatic/manual
Sampling frequency: 6-10 times/hour;
Detection limit: 1-5ugCHl-a • l-1;
Voltage: 110-230VAC;
Power: 100W;
Size: 300x400x500mm;
Other: Optional GPS positioning
Automatic cleaning function: can freely set the cleaning cycle
Online monitoring of Lake Balaton in Hungary - Study on the stability of phytoplankton communities in highly dynamic environments
In 2003-2004, water ecological factors such as water temperature, total radiation, vertical attenuation of light, and internal P load were monitored in the Balaton Lake area. Time series data of four colors of photosynthetic sensitive algae were monitored on a daily basis, and the obtained data was used to analyze the seasonal variation patterns of phytoplankton and simulate the occurrence of various algal blooms. The experimental results indicate that the above measured data can sufficiently simulate the formation and decay of various algal blooms.
The application of Trios online water quality analyzer to monitor changes in dissolved oxygen in lake water was used to verify DF delayed fluorescence. The results showed that although the quantification of dissolved oxygen is uncertain, there is a strong correlation between delayed fluorescence and dissolved oxygen.
Ecological environment monitoring of Poyang Lake and Yangtze River water bodies
Research institutions such as Poyang Lake Hydrological Bureau and Yangtze River Water Resources Protection Science Research Institute use DF live phytoplankton online monitoring devices to monitor changes in the ecological environment of Poyang Lake and Yangtze River water bodies.
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