Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-03-01 Hits: Popular:AG11 battery
Cadmium is highly toxic and can accumulate in the liver, kidneys, bones and other tissues of the human body, causing damage to various internal organs and tissues, especially the kidneys. It can also lead to osteoporosis and softening. Such as the Toyama incident in Japan (bone pain incident).
The vast majority of fresh water contains less than 1ug/L cadmium, and the average concentration of cadmium in seawater is 0.15μg/L. The main sources of cadmium pollution are wastewater discharged from electroplating, mining, dye, battery and chemical industries.
Methods for measuring cadmium include:
1. Atomic absorption spectrophotometry (AAs) can measure elements such as Cu, pb, Zn, Cd, etc. It has fast determination, low interference, and wide application range. It can measure multiple elements separately in the same sample. Methods such as direct inhalation, extraction or ion exchange enrichment followed by inhalation or graphite furnace atomization can be used for measurement.
(1) Principle
The solution containing the element to be measured is sprayed into a fine mist through the atomization system, enters the flame with the carrier gas, and dissociates into ground state atoms in the flame. When the hollow cathode lamp radiates the characteristic wavelength light of the element to be measured and passes through the flame, it is absorbed by it. Absorption, under certain conditions, the change in characteristic wavelength light intensity has a quantitative relationship with the concentration of the ground state atoms of the element to be measured in the flame, and thus has a quantitative relationship with the concentration C of the element to be measured in the sample. That is: A=K×C
(2) Method application
1) Standard curve method: Prepare a series of standard solutions in the same matrix containing different concentrations of the elements to be measured, measure their absorbance respectively, and draw a standard curve. Under the same operating conditions, measure the absorbance of the sample solution, and check the concentration from the standard curve. .
2) Standard addition method: Take several (not less than 4) sample solutions with the same volume, and add different equal amounts of standard solutions of the elements to be measured (such as 10, 20, 40 μg) starting from the second part, and then use Dilute to the same volume with distilled water and shake well. Under the same experimental conditions, the absorbance of each solution was measured sequentially as Ax, A1, A2, and A3. Taking the absorbance A as the ordinate and the amount of the standard solution added (concentration, volume, absolute content) as the abscissa, draw an A-C curve (but the origin). The epitaxial curve intersects with the abscissa at a point Cx, and the distance between this point and the origin is, It is the content of the element to be measured in the tested sample solution.
Choice of specific AAS methods:
① When the content in clean water samples and wastewater samples is relatively high, it can be measured by direct inhalation flame atomic absorption method;
② Trace amounts of Cd (Cu, pb) can be measured by flame atomic absorption method after extraction or ion exchange treatment;
③ Trace amounts of Cd (Cu, pb) can be measured by graphite furnace atomic absorption method.
Read recommendations:
Disadvantages of lithium iron phosphate battery
Explosion - Proof Lithium Batteries
Last article:18650 battery 3.7v 6000mah.Power batteries seek breakthroughs: Comparison of lead-acid, iron and lit
Next article:AG10 battery.Introduction to lithium-ion battery principles and process flow
Popular recommendation
21700 battery
2023-03-22602248 battery manufacturer
2023-03-223.20V Lithium Polymer Battery maker
2023-03-2232700 battery Processing
2023-03-2248v lifepo4 battery pack
2023-05-0918650 4800MAH 3.7V
2022-07-29Hanging neck fan
2022-09-22Coin Battery CR 1225
2022-09-27Lithium-ion battery GN500 518wh
2022-08-23L822 32A/29A
2022-10-09602535 500MAH 3.7V
2023-06-10Ni-MH AAA600mAh 1.2V
2022-07-0118650 2600mAh 3.7V
2022-06-20Alkaline AA Battery LR06
2022-11-11LR6
2023-02-07lithium 3400mah 3.7v 18650 battery
2023-06-2518650 battery 2600mah
2023-06-25AG3 battery
2023-06-25dry cell battery
2023-06-25li ion 18650 battery pack Manufacturing
2023-06-25Nickel cobalt lithium manganate (NMC) battery
2022-11-21Can Different Types of Lithium - Ion Batteries Be Compatible?
2025-05-27Introduction of polymer lithium battery
2024-04-011.5v Dry Battery.Lithium ion batteries for mobile phones
2023-12-27What are the characteristics of ternary lithium batteries?CR1632 battery
2023-06-20Basic composition of lithium battery protection board.R6 Carbon battery
2023-06-06What is the effect of lithium battery set polar tablets on battery performance.51.2v solar energy st
2023-03-28LR927 battery.Will change the status quo of manual testing
2023-10-14What is the ternary lithium battery?solar energy storage lifepo4 battery 24v 200ah
2023-03-1618650 Factors Affecting the Price of Battery Cell
2022-12-13