ORFIA-605 flow injection analyzer is a multi-channel automatic flow injection analyzer with online sample pre-processing function. The instrument consists of a multi-parameter analysis channel, an autosampler, and a software workstation. Each analysis channel has an independent peristaltic pump, chemical analysis template, photoelectric detector, system control and signal acquisition circuit. The channel has built-in online heating, online distillation, online ultraviolet digestion and online extraction devices required by this method, and the chemical reaction process is controlled by software. Each channel is completely independent, and there is no need to change the hardware to change the analysis method. The software workstation supports simultaneous detection of up to 8 channels.

Instrument principle: Based on the theory of flow injection analysis (FIA), in a closed pipeline, the sample solution is directly injected into the reagent carrier in the form of a "sample plug", and the reagent and sample are mixed and reacted in the pipeline. The detection can be performed without the need for the reaction to proceed completely, and the traditional notion that analysis must be performed under steady-state conditions is eliminated. Chemical analysis can be performed under non-equilibrium dynamic conditions, which greatly improves the analysis speed.

Features:
1. Fully automatic multi-channel analysis, the software workstation supports up to 8 channels of simultaneous detection, and it is easy and quick to change the analysis method; the entire analysis process is automatically completed without manual intervention.

2. Autosampler:

1. The large-capacity polar coordinate automatic sampler is equipped with 162 sample cup positions and more than 200 positions for selection, needle washing position, and two large-capacity washing liquid levels to meet the needs of large sample volume analysis;

2. Code wheel positioning, high positioning accuracy, no system cumulative error;

3. Precisely processed injection needle with anti-collision needle device. When the injection needle pierces the hand or other obstacles, it s falling immediately to avoid hurting people and wasting reagents;

4. Equipped with a dual-channel replenishing pump, program control automatically replenishes the cleaning fluid, eliminating the need for manual replenishment of the cleaning fluid.

Three, high-precision peristaltic pump

1. Each analysis channel has an independent 12-channel peristaltic pump, the pump speed can be set by the program, 5-100 revolutions per minute;

2. The peristaltic pump adopts an integral gland design, and the adjustable tension device ensures that it can adapt to the pressure of each pump tube and improve reliability. The gland surface has a special coating treatment, which is resistant to chemical corrosion and reduces pump pipe fatigue.

3. Each pump tube has multiple clamps, and the clamp position can be changed frequently to extend the service life of the pump tube.

4. Online sample pre-processing device

1. It has the functions of online heating, distillation, UV digestion, extraction, and reduction-processing samples quickly and accurately, with low consumption of samples and reagents;

2. On-line distillation-condensation device adopts quartz gas-liquid separator, which has fast distillation speed and high efficiency; no dialysis membrane is required, which eliminates the trouble of membrane replacement;

3. The instrument has a built-in 254nm ultraviolet lamp digester, and the program controls to turn on and off the lamp, which can effectively extend the life of the ultraviolet lamp;

4. Program setting and precise control of heating temperature to ensure the consistency of each reaction process; design with over-temperature protection device, safe and reliable.

5. The dual-beam optical system has good stability and high detection accuracy. The LED light source is configured for certain wavelengths, which has a long service life, low noise, low drift, and good stability.

6. High-sensitivity blue-enhanced photoelectric detector, wavelength detection range 340nm~1050nm. High-precision A/D converter, the detection dynamic range is not less than 3 orders of magnitude.

7. Advanced online degassing device to remove air bubbles online to avoid interference.

8. With leakage detection device, it will automatically alarm and stop detection after detecting leakage, which can avoid instrument damage and reduce reagent waste.

9. Dedicated flow injection analysis software workstation, Chinese operating system, user-friendly interface design, simple operation, easy to learn and easy to use; software preset method analysis conditions, easy to use.

10. A proportional diluter is designed, which can automatically prepare calibration curve samples and online dilute over-standard samples with fast dilution speed and high accuracy. When the concentration exceeds the standard sample, it can be automatically diluted according to the preset program, and the pipeline should be cleaned to avoid contamination of the next sample.

11. Multiple safety protection devices make it safer to use.

12. All analysis methods are in line with national standard methods and EPA/ISO methods.

Application industry
Flow injection analyzers have developed a variety of methods that can be used to detect surface water, groundwater, seawater, sewage, soil, plants, fertilizers, and fermentation processes, food, beverages, beer, tobacco, feed, pharmaceuticals and other industries.

Test items
Water and sewage: cyanide, volatile phenol, total cyanide, total phosphorus, total nitrogen, soluble sulfide, nitrate, nitrite, ammonia nitrogen, total nitrogen, silicate, sulfate, anionic surfactant, orthophosphoric acid Salt, hexavalent chromium, soluble boride, fluoride, urea, total alkalinity, total hardness, acidity, color, calcium, iron, magnesium, formaldehyde, etc.;
Seawater: total dribatic acid, ammonia nitrogen, total Kjeldahl nitrogen, total nitrogen (TN), calcium, carbonate, chloride, residual chlorine, hexavalent chromium, copper, total cyanide or free cyanide, anionic surfactant, total Hardness, iron, fluoride, formaldehyde, volatile phenol, magnesium, manganese, nitrate, nitrite, pH, phosphate, total phosphorus, potassium, silicate, sodium, sulfide, sulfate, urea;
Soil: total nitrogen, ammonia nitrogen, nitrate nitrogen, Kjeldahl nitrogen, phosphate, sulfate, silicate, urea, potassium, iron, magnesium, etc.;
plant:
fertilizer:
Aluminum, ammonia nitrogen, boron, calcium, chloride, conductivity, iron, fluoride, magnesium, nitrate, phosphate, total phosphorus, potassium, sulfate;
Ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen, potassium, urea, fluoride, etc.;
Food grains: total phosphorus, total Kjeldahl nitrogen, total nitrogen, starch, cyanide, iodide, magnesium, etc.;
Beverages and beer: total acid, sulfur dioxide, total sugar and reducing sugar, etc.;
Milk and products: total phosphorus, total nitrogen, urea, total Kjeldahl nitrogen, total sugar and reducing sugar, etc.;
Meat products: nitrate, nitrite, phosphate, total nitrogen, Vc, etc.

Standard support:



●"The People's Republic of China Drinking Water Testing Method for Natural Mineral Water" GB/T 8538-2008 Flow injection distillation method for measuring cyanide;

● "The People's Republic of China Drinking Water Natural Mineral Water Inspection Method" GB/T 8538-2008 Flow injection distillation method to measure volatile phenol;

● Environmental industry standard "Water Quality Determination of Ammonia Nitrogen Flow Injection-Salicylic Acid Spectrophotometry" HJ 666-2013;

● Environmental industry standard "Water Quality Determination of Total Nitrogen-Flow Injection-Naphthalene Ethylene Diamine Hydrochloride Spectrophotometry" HJ 668-2013;

● Environmental industry standard "Water Quality Determination of Total Phosphorus Flow Injection-Ammonium Molybdate Spectrophotometry" HJ 671-2013;

● Environmental industry standard "Water Quality Determination of Volatile Phenol Flow Injection-4-Amino Antipyrine Spectrophotometry" HJ 825-2017;

● Environmental industry standard "Water Quality Determination of Sulfide Flow Injection-Methylene Blue Spectrophotometry" HJ 824-2017;

● Environmental industry standard "Water Quality Determination of Cyanide Flow Injection-Spectrophotometry" HJ 823-2017;

● Environmental industry standard "Water Quality Determination of Anionic Surfactants Flow Injection-Methylene Blue Spectrophotometry" HJ 826-2017;

● Environmental industry standard "Water Quality Determination of Hexavalent Chromium Flow Injection-Diphenylcarbazide Spectrophotometry" HJ 908-2017