Correction: Analytical Sciences (2022) 38:1149–1152 https://doi.org/10.1007/s44211-022-00151-1

On page 1149, Introduction:

… Nara sumi is famous for its making process, which has remained almost unchanged for more than 140 years. … For example, soot collected from a larger flame is said to be finer than that from a smaller flame, …

should be replaced as follows.

… Nara sumi is famous for its making process, which has remained almost unchanged for more than 440 years. … For example, soot collected from a smaller flame is said to be finer than that from a larger flame, …

The length of Nara Sumi's history and the example of rule of thumb should be replaced correctly.

On page 1152, the tenth reference should have been as follows.

10. M.L. Botero, Y. Sheng, J. Akroyd, J. Martin, J.A.H. Dreyer, W. Yang, M. Kraft, Carbon 141, 635–642 (2019). https://doi.org/10.1016/j.carbon.2018.09.063

The original article has been corrected.