Core Viewpoint - The article promotes a new course titled "Practical Analysis of Atomic Absorption Spectroscopy in 30 Lectures," aimed at providing comprehensive training on atomic absorption spectroscopy techniques and addressing common issues faced by users [3]. Course Advantages - The course offers foundational knowledge of atomic absorption spectroscopy analysis [4]. - It covers the requirements for sample introduction for four types of atomic spectrometers [4]. Instructor Introduction - The course is taught by Professor Duan Xuchuan from Tianjin Normal University, who has extensive experience in elemental analysis, particularly in gas sampling techniques [7]. Course Highlights - The instructor's rich experience in analyzing difficult samples ensures the practical relevance of the course content [8]. - The course provides a detailed analysis of various sample pretreatment methods, highlighting their advantages and disadvantages, which is highly beneficial for practical work [8]. Target Audience - The course is suitable for laboratory technicians specializing in atomic spectroscopy [10]. - It is also designed for professionals engaged in inorganic element analysis across various fields [11]. - Individuals seeking to enhance their skills in atomic spectroscopy analysis are encouraged to enroll [11]. Pricing and Enrollment - The course is offered at a limited-time discount price of 99 yuan, down from the original price of 300 yuan, with only 50 spots available [5][12]. - The course is a virtual product, and once purchased, it cannot be returned or exchanged [16]. - The course is valid for 360 days from the date of purchase, allowing unlimited access during this period [16].