Soil pretreatment mechanism for ICP-MS determination

Abstract

The utility model provides a soil pretreatment mechanism for ICP-MS (Inductively Coupled Plasma Mass Spectrometry) determination, which comprises a soil grinding box, the lower part of the soil grinding box is connected with a collecting box, and one side of the soil grinding box is provided with a bracket. A movable plate is arranged on the side, provided with the support, of the soil grinding box, a refining roller is arranged on the movable plate, an L-shaped notch is formed in the support, fixing rods are fixedly arranged on the two sides of the movable plate, lifting plates are arranged on the fixing rods, and the fixing rods can slide along the L-shaped notch. According to the soil pretreatment mechanism for ICP-MS measurement, the refining rollers on the two sides of the movable plate can be used in turn, soil measured in two times of experiments is prevented from being mixed, the movable plate can slide out along the L-shaped groove opening, the lifting plate is rotated by 180 degrees during sliding out, the refining rollers can be changed in turn, and after the movable plate slides out, the soil can be conveniently and rapidly pretreated. And cleaning of the interior of the soil grinding box and the surface of the refining roller is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of soil determination, in particular to a soil pretreatment mechanism for ICP-MS determination. Background Technique

[0002] Soil heavy metals refer to metal elements contained in soil that pose potential hazards to the ecological environment and human health, such as lead, cadmium, mercury, etc. ICP-MS (Inductively Coupled Plasma Mass Spectrometry) is a technical means that uses an inductively coupled plasma to atomize a sample and detects and analyzes the atomized substance through a mass spectrometer. It has the advantages of high sensitivity and good accuracy, so it is widely used in the determination of heavy metals in soil.

[0003] Before the determination using ICP-MS, it is necessary to pretreat the soil. The dried soil sample is screened, crushed, weighed, and then dissolved (acid dissolution) to obtain a soil sample solution for determination. After the soil sample is crushed, the crushing roller is likely to be contaminated with the soil sample, which is not easy to clean and is likely to be mixed with the soil sample for the next determination, thus affecting the determination result.

[0004] To solve the above problems, this case came into being. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a soil pretreatment mechanism for ICP-MS determination to solve the problems raised in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: A soil pretreatment mechanism for ICP-MS determination includes a soil grinding box, which is connected to a collection box below. One side of the soil grinding box is provided with a bracket. An activity plate is provided on the side of the soil grinding box with the bracket. A refining roller is provided on the activity plate. An L-shaped notch is opened on the bracket. Fixed rods are fixedly provided on both sides of the activity plate. A lifting plate is provided on the fixed rods, and the fixed rods can slide along the L-shaped notch.

[0009] Preferably, refining rollers are provided on both sides of the activity plate. The refining rollers are divided into a driving roller and a driven roller, and hexagonal holes are provided on the driving roller.

[0010] Preferably, a sliding groove is provided inside the bracket, a cross plate is slidably connected to the sliding groove, a motor is provided on the cross plate, and the output end of the motor is a hexagonal column connected to a hexagonal hole.

[0011] Preferably, a handle is provided on the side of the cross plate away from the refining roller.

[0012] Preferably, a reinforcing frame is provided on the side of the bracket away from the soil grinding box.

[0013] (III) Beneficial effects

[0014] After adopting the above technical solution, compared with the prior art, the present utility model has the following advantages: The soil pretreatment mechanism for ICP-MS determination of the present utility model can be used alternately through the refining rollers on both sides of the movable plate, avoiding the mixing of the soil measured in the previous and subsequent experiments. The movable plate can slide out along the L-shaped notch, and the rotation of the lifting plate by 180 degrees when sliding out can complete the rotation of the refining roller. After the movable plate slides out, it is also more convenient to clean the inside of the soil grinding box and the surface of the refining roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] In the figure: 1 soil grinding box, 2 bracket, 3 movable plate, 4 refining roller, 41 driving roller, 42 driven roller, 5 L-shaped notch, 6 fixed rod, 7 lifting plate, 8 sliding groove, 9 cross plate, 10 motor, 11 handle, 12 reinforcing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described in detail below with reference to the drawings and embodiments.

[0018] The embodiment of the present utility model provides a soil pretreatment mechanism for ICP-MS determination, as Figure 1 shown, including a soil grinding box 1, the lower part of the soil grinding box 1 is connected to a collection box, and a bracket 2 is provided on one side of the soil grinding box 1. A movable plate 3 is provided on the side of the soil grinding box 1 with the bracket, a refining roller 4 is provided on the movable plate 3, an L-shaped notch 5 is opened on the bracket 2, fixed rods 6 are fixedly provided on both sides of the movable plate 3, a lifting plate 7 is provided on the fixed rods 6, the fixed rods 6 can slide along the L-shaped notch 5, refining rollers 4 are provided on both sides of the movable plate 3, the refining roller 4 is divided into a driving roller 41 and a driven roller 42, and a hexagonal hole is provided on the driving roller 41.

[0019] Through the refining rollers 4 on both sides of the movable plate 3, by alternately using the refining rollers 4 on both sides, the mixing of the soil (the soil sticking to the rollers) measured in the previous and subsequent experiments is avoided. The movable plate 3 can slide out along the L-shaped notch 5. The experimenter needs to hold the lifting plates 7 on both sides with both hands, lift the movable plate 3 upward and then slide it into the horizontal part of the L-shaped notch 5. After sliding into the horizontal part, rotate the lifting plate 7 half a turn to complete the rotation of the refining roller 4. After the movable plate 3 slides out, it is more convenient to clean the inside of the soil rolling box 1 and the surface of the refining roller 4, and the inside of the soil rolling box 1 and the surface of the refining roller 4 can be cleaned more thoroughly, thereby preventing the mixing of the front and back soil specimens.

[0020] Reference Figure 1 , a sliding groove 8 is provided inside the bracket 2, a cross plate 9 is slidably connected to the sliding groove 8, a motor 10 is provided on the cross plate 9, and the output end of the motor is a hexagonal column connected to a hexagonal hole. When it is necessary to slide the movable plate 3 out along the L-shaped notch 5 for cleaning or replacing the refining roller 4, it is necessary to first slide the cross plate 9 and the motor 10 thereon along the sliding groove 8.

[0021] A handle 11 is provided on the side of the cross plate 9 away from the refining roller 4, and the handle 11 facilitates pulling the cross plate 9 apart. A reinforcing frame 12 is provided on the side of the bracket 2 away from the soil rolling box 1, and the reinforcing frame 12 makes the bracket 2 more stable.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil pretreatment mechanism for ICP-MS determination, characterized in that: Comprising a soil crushing box (1), the lower part of the soil crushing box (1) is connected to a collection box, a bracket (2) is provided on one side of the soil crushing box (1), a movable plate (3) is provided on the side of the soil crushing box (1) where the bracket is located, a refining roller (4) is provided on the movable plate (3), an L-shaped notch (5) is formed on the bracket (2), fixing rods (6) are fixedly provided on both sides of the movable plate (3), a lifting plate (7) is provided on the fixing rods (6), and the fixing rods (6) can slide along the L-shaped notch (5); Refining rollers (4) are provided on both sides of the movable plate (3), the refining rollers (4) are divided into a driving roller (41) and a driven roller (42), and hexagonal holes are provided on the driving roller (41).

2. The soil pretreatment mechanism for ICP-MS determination according to claim 1, wherein: A sliding groove (8) is provided inside the bracket (2), a cross plate (9) is slidably connected to the sliding groove (8), a motor (10) is provided on the cross plate (9), and the output end of the motor is a hexagonal column connected to the hexagonal hole.

3. The soil pretreatment mechanism for ICP-MS determination according to claim 2, wherein: A handle (11) is provided on the side of the cross plate (9) away from the refining roller (4).

4. A soil pretreatment mechanism for ICP-MS determination according to claim 1, characterized in that: A reinforcing frame (12) is provided on the side of the bracket (2) away from the soil crushing box (1).

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