A device and method for acidolysis using Type I glass tube

Abstract

The invention provides a device and method for acidolysis using type I glass tubes. The device includes a type I glass tube providing an acidolysis reaction space, a magnet and a magnetic stirrer, a sample boat for storing samples, and a type I The connection joint at the top nozzle of the glass tube and the magnetic stirrer; wherein the acid hydrolysis reaction solution is contained in the I-type glass tube, the magnet is located on the outer wall side of the I-type glass tube, and the magnetic stirrer is located on the inner wall of the I-type glass tube On one side, the magnet and the magnetic stirrer are attracted and fixed on the I-type glass tube. The sample boat is placed in the I-type glass tube with the opening facing upwards and supported on the magnetic stirrer; the present invention adopts a symmetrical structure, and on the basis of ensuring the quality of the experimental data, the operation is more convenient, greatly simplifying the experimental process and reducing the Risk of experimental failure.

Description

technical field [0001] The invention relates to a device and method for acid hydrolysis using Type I glass tube. Background technique [0002] Carbonate rocks are widely distributed in nature and are important information carriers for studying carbon cycle, global change, paleoenvironment and paleoclimate evolution. Carbon, oxygen and cluster isotopes of various carbonate minerals are powerful and commonly used geochemical proxy indicators for studying their material sources and formation environments (such as temperature, salinity, etc.). Since the 1950s, the traditional phosphoric acid method (CaCO 3 +H 3 PO 4 =CaHPO 4 +CO 2 +H 2 O) has been the standard analytical procedure to obtain the carbon, oxygen and cluster isotopic compositions of carbonate minerals (Ghosh et al., 2006; McCrea, 1950). This analytical process consists of acid hydrolysis of carbonate minerals, generation of CO 2 The purification and isotope ratio analysis are composed of three steps, and the...

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Problems solved by technology

[0008] (3) After the Y-tube acidolysis device reaches temperature balance, it is necessary to tilt the device to allow the acid to flow into the loading arm, thereby triggering the acidolysis reaction; The sample reaction is carried out in the state of the vacuum pipeline (it is very inconvenient to operate the acid hydrolysis device on the vacuum pipeline), so that the Y-shaped tube acid hydrolysis device must be connected to the vacuum pipeline twice to complete vacuuming, sample reaction and CO 2 The purification operation is slightly cumbersome in operation, which increases the risk of operational errors. In addition, the steps and time of the experiment will be prolonged, and the error rate of the experiment and the energy consumption of the experimenters will also be increased.

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