Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Korea.
Department of Chemistry, Chung-Ang University, Seoul 06974, Korea.
Molecules. 2021 Jan 15;26(2):434. doi: 10.3390/molecules26020434.
Lacquer sap has been used by humans from antiquitywhen it was treated as a luxury item because of its desirable physical properties. In modern times, although access barriers are lower, lacquer is still considered to be rare and valuable. Thus, low quality, inexpensive Vietnamese and Myanmarese lacquers and cashew nutshell liquid are frequently added to the costly lacquer sap from Korea, China, and Japan. However, these blended lacquers can diminish the quality of artisan works. The lacquer saps mixed with other natural lacquers were characterized using time-of-flight secondary-ion mass spectrometry (ToF-SIMS) and high-performance liquid chromatography (HPLC). ToF-SIMS provided the chemical structure of the lacquer monomer, copolymerized dimers, trimers, etc. HPLC provided quantitative analysis of the components of a randomly mixed lacquer. These techniques can be used to control the quality of commercial lacquer sap for the Asian lacquer industry and the traditional conservation of ancient objects.
漆液自古以来就被人类使用，因其具有理想的物理性质而被视为奢侈品。在现代，尽管进入门槛较低，但漆仍然被认为是稀有而有价值的。因此，低质量、廉价的越南和缅甸漆和腰果壳液经常被添加到来自韩国、中国和日本的昂贵漆液中。然而，这些混合漆会降低手工艺品的质量。使用飞行时间二次离子质谱（ToF-SIMS）和高效液相色谱（HPLC）对与其他天然漆混合的漆液进行了表征。ToF-SIMS 提供了漆单体、共聚二聚体、三聚体等的化学结构。HPLC 提供了随机混合漆成分的定量分析。这些技术可用于控制亚洲漆业和古代文物传统保护用商业漆液的质量。
