Unlock instant, AI-driven research and patent intelligence for your innovation.

Content measurement of manganese element in environment based on ICP method

An environment and metal element technology, which is applied in the field of manganese element measurement in the environment by plasma atomic emission spectrometry, can solve the problems of troublesome measurement operation and poor precision, and achieve the effects of convenient and fast measurement, high precision and simple processing

Inactive Publication Date: 2013-11-13
广东量源检测技术有限公司
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some measurement operations are cumbersome and less accurate
The existing measurement technology can no longer meet the existing needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Step 1: Weigh 0.25g of a sample in the environment, such as a soil sample, and put it into a microwave digestion tank after drying, then add deionized water, concentrated nitric acid solution and concentrated sulfuric acid solution (volume ratio: 1:1) 10mL; The digestion tank of the above solution is heated under certain conditions. The heating conditions include a power of 360W and a heating temperature of 180 degrees; the heating temperature is reached after 15 minutes of heating, kept at a constant temperature for 25 minutes, and cooled to completely digest the solution; take out the digestion tank, Add the above solution into a 20mL volumetric flask, then add a mixed solution of 5mL of 10% nitric acid and 5mL of 10% sulfuric acid. Potassium manganate solution and a small amount of water; heat and digest on the electric heating plate again until thick white smoke is emitted, remove and cool slightly; transfer the digestion solution to a 20mL volumetric flask, dilute t...

Embodiment 2

[0025] Step 1: Weigh 0.25g of samples from the environment, such as industrial sewage samples, and add them to a microwave digestion tank, then add deionized water, concentrated nitric acid solution and concentrated sulfuric acid (volume ratio: 1:1) 10mL; The tank is heated under certain conditions, the heating conditions include a power of 360W and a heating temperature of 180 degrees; the heating temperature is reached after 15 minutes of heating, kept at a constant temperature for 25 minutes, and cooled to completely digest the solution; take out the digestion tank, add the above solution and add To a 20mL volumetric flask, add a mixed solution of 5mL of 10% nitric acid and 5mL of 10% sulfuric acid, heat and digest on a hot plate until thick white smoke is emitted, take it down to room temperature, and add 1mL of 15% potassium permanganate solution and a small amount of water; heat and digest on the electric heating plate again until thick white smoke is emitted, remove and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Transmit poweraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for measuring manganese content in environment sample, and the method employs ICP plasma atomic emission spectrometry to measure content of manganese in the environment sample. The method comprises the following steps: first adding a certain amount of acid solution to the environment sample containing manganese for digestion in a digestion can, and adding a certain amount of acid solution to the resultant for digestion in a digestion can after the resultant is cooled to the room temperature; adding a mixture of nitric acid and sulfuric acid to the digested solution and then heating the resultant on an electric hot plate for digestion until dense white smoke rises, taking the resultant down from the electric hot plate and waiting until the resultant is cooled to room temperature, and then adding potassium permanganate solution and a few water; and putting the resultant onto the electric hot plate for heating and digesting until the dense white smoke rises again. The method measures content of manganese by an ICP plasma atomic emission spectroscopy instrument, and selects experiment parameters reasonably according to experiment requirement so as to measure content of manganese in the environment sample rapidly and accurately. The detection limit of the method is between 0 and 0.15 mu g / kg, which satisfies production and life requirement.

Description

technical field [0001] The invention relates to the field of environmental element measurement, in particular to the measurement of manganese element in the environment by ICP plasma atomic emission spectrometry. Background technique [0002] There are many ways to classify the forms of heavy metal ions in soil, but Tessier’s quintile is the most common method at present, which divides heavy metals in soil into ion-exchange state, carbonate-bound state, iron-manganese oxide-bound state, and organic state. There are 5 forms including sulfide bound state and residual state. [0003] (1) Ion exchange state. Heavy metals in the ion exchange state are highly active and highly toxic in the soil environment, and are easily absorbed by plants, and are also easily absorbed by plants, leached or reacted to other forms. (2) Carbonate bound state. The carbonate binding state is affected by soil conditions and sensitive to pH. An increase in pH value will cause free heavy metals to f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/71G01N1/44
Inventor 傅酉付玉生
Owner 广东量源检测技术有限公司