Determination of Soil Elements by Inductively Coupled Plasma Atomic Emission Spectrometry (1)

(1) Scope of application

Inductively coupled plasma emission spectroscopy (ICP-AES) can be used to determine the metal and non-metal elements in the solution

Table 5-31 Detection limit of inductively coupled plasma emission spectrometry

(2) Method principle

According to the spectrometric method, the inductively coupled plasma emission spectrometer can detect the characteristic atomic lines of the elements

(3) Reagents and materials

(1) Freshly prepared deionized water: first-grade pure water

(2) Sulfuric acid , nitric acid , hydrochloric acid and other reagents: pure superior grade

(3) Mixed standard stock solution, 1000ug/mL: Purchase mixed standard solution with standard substance certificate

(4) Mixed standard use solution, 100ug/mL: Pipette 10.

(4) Collection and processing of samples

1.

Soluble analytes: For the determination of soluble analytes in ground and surface water, you can take a filtered and acid-preserved sample (≥20mL) into a 50mL polypropylene centrifuge tube

2.

Determine the dry matter and moisture content of the soil according to the "Gravimetric Method for Determination of Soil Dry Matter and Moisture" (HJ613-2011); prepare samples according to the "Technical Specification for Soil Environmental Monitoring" (HJ/T166-2004); digestion method is "HNO ₃ +HCI", if there is insoluble matter in the digestion, it can be left overnight, or part of the sample can be centrifuged until it is clear

Related Links: Determination of 22 Metal Elements in Solid Waste Inductively Coupled Plasma Atomic Emission Spectrometry (4)