Abstract: The invention provides an apparatus for creating a hole in a glass container with a medium stored therein, comprising: a laser system configured to focus laser pulses with a wavelength in the ultraviolet regime onto the glass container such as to create a hole in the glass container by laser ablation preferably without creating significant amounts of glass particles inside and outside the glass container.

Abstract: The present invention relates to a method for identifying and/or authenticating a sample, comprising adding at least one chemical compound to the sample, determining a level of the at least one compound after addition to the sample; comparing the level of the at least one compound to a reference level and identifying the sample based on the comparison with the reference sample and the effect of the sample on the level of the at least one compound. The invention further relates to the use of the at least one compound in the method for identifying and/or authenticating a sample. Further, the invention relates to the use of a kit comprising the at least one compound in the inventive method. In addition, the invention relates to a composition comprising the at least one compound. Further, the invention relates to a kit comprising the compositions provided herein, e.g. for calibrating the methods provided herein and/or the instruments employed in the methods provided herein.