SP-3882AAS is a specialized lead cadmium testing instrument for detecting toxic heavy metal elements in food. Part of it comes from the enrichment of heavy metal elements in crops, while the other part comes from pollution during food production, processing, storage, and transportation. Heavy metal elements can be biologically concentrated through the food chain, increasing their concentration by millions of times and causing harm to the human body. Heavy metals that enter the human body need to accumulate for a period of time to show toxicity, and are often not easily detected by people, with great potential harm.
Lead is a highly toxic heavy metal pollution that is difficult to eliminate once it enters the human body. Lead has toxic effects on various systems of the human body, mainly manifested in the nervous system, hematopoietic system, and blood vessels. In terms of the nervous system, advanced neurological dysfunction may occur in the early stages, and in the late stages, organic encephalopathy and nerve paralysis may occur; In terms of hematopoietic system, lead mainly interferes with the synthesis of hemoglobin, causing anemia.
Cadmium is a non essential and toxic element for the human body. The excretion rate of cadmium is very slow, and the biological half-life of cadmium in the human renal cortex is 10-30 years. Cadmium can cause irritation to the respiratory tract, and long-term exposure can lead to loss of smell, gum macula, or gradual yellowing. Cadmium compounds are not easily absorbed by the intestine, but can be absorbed by the body through respiration and accumulate in the liver or kidneys, causing harm, especially to the kidneys. They can also lead to osteoporosis and softening. Cadmium entering the body can damage blood vessels, lead to tissue ischemia, and cause multi system damage.
Therefore, the detection of lead and cadmium is of great significance in environmental monitoring, food safety, and blood lead and cadmium detection.
Application areas: General instruments, food safety, environmental testing, medical and health.

SP-3882AAS

Dual detector optical dual beam, total reflection achromatic optical system;

The super strong anti atomizer light radiation ability can effectively eliminate flame background emission and strong light radiation from graphite tubes at high temperatures.

Intelligent stray light measurement and correction technology, Effectively improved the optical accuracy and linear range of the atomic absorption spectrometer, and enhanced its background correction capability.

Optical noise reduction technology, combined with optical component ultraviolet enhancement technology, effectively improves the optical performance and linear range of the instrument.

Gap control lamp technology enables ordinary domestic hollow cathode lamps to be used for self-priming background correction, extending the service life of hollow cathode lamps by more than ten times and reducing usage costs.

Mercury lamp reagent gradient measurement technology improves the speed and performance of instrument detection.

Horizontal Zeeman magnetic field longitudinal heating graphite furnace

Adopting an eight lamp rack system with light source emission direction parallel to the center of gravity, automatic lamp replacement.

Simultaneously equipped with three background fastening methods: deuterium lamp, self-priming, and Zeeman;

Zeeman type atomic absorption flame graphite furnace series integrated machine does not require switching;

Wavelength range: 180nm-900nm Automatic peak searching

Spectral bandwidth: six automatic switching modes: 0.1nm, 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.0nm

Burner: Metal titanium combustion head component;

Efficient glass atomizer, directly upgradable and non disassembly adjustable ceramic atomizer device;

Flow rate of protective gas inside graphite tube

Install automatic alarm and security protection;

Atomization heating methods: photo controlled heating, time controlled heating, general heating;

The position of the graphite furnace should be fully adjusted horizontally, vertically, and in rotation.Concentration calculation methods: standard curve method (a total of 6 linear and nonlinear fitting methods), standard addition method, internal standard method.

Repeated measurement times: 1-30 times, calculate the average, and provide the standard deviation and relative standard deviation.

Background correction:

Flame: self-priming background correction:>80 times (1Abs);

Deuterium lamp background correction:>40 times (at 1Abs)