Identification of leaching toxicity by inductively coupled plasma emission spectrometry (1)

(1) Scope of application

Inductively coupled plasma atomic emission spectrometry is applicable to solid waste and solid waste leaching solution for silver (Ag), aluminum (A1), arsenic (As), barium (Ba), beryllium (Be), calcium (Ca), cadmium (Cd) , Cobalt (Co), Chromium (Cr), Copper (Cu), Iron (Fe), Potassium (K), Magnesium (Mg), Manganese (Mn), Sodium (Na), Nickel (Ni), Lead (Pb) Determination of element content of, antimony (Sb), strontium (Sr), thorium (Th), titanium (Ti), thallium (T1), vanadium (V), zinc (Zn) and other elements

Table 5-16 Recommended wavelength and detection limit of the elements to be determined

(2) Method principle

Plasma emission spectroscopy can simultaneously determine the content of multiple elements in a sample

(3) Reagents and materials

(1) Reagent water is the first grade water specified in GB/T6682

(2) Nitric acid (HNO ₃ ), p=1.

(3) (1+1) Nitric acid solution

(4) Oxygen, cylinder gas, the purity is not less than 99.

(5) Standard stock solution: buy from an authoritative commercial organization or use ultra-high purity chemical reagents and metals (purity higher than 99.

(6) Single element intermediate standard solution: divide the single element standard stock solution, dilute 10 elements such as Cu, Cd, V, Cr, Co, Ba, Mn, Ti and Ni to 0.

(7) Preparation of multi-element mixed standard solution: In order to perform simultaneous multi-element determination and simplify the operation, it is necessary to use single-element intermediate standard solutions to prepare multi-element mixed standard solutions according to the interference between elements and the nature of the standard solution.

Table 5-17 Grouping situation of multi-element mixed standard solution

Related Links: Overview of Inductively Coupled Contour Sub-body Emission Spectrometer