A standard calibration solution includes water, a non-alcoholic solvent that is mixed with water, and a steroid hormone, and a content of the non-alcoholic solvent is 10% by volume or more and 50% by volume or less. The standard calibration solution is used for quantitative measurement using a mass spectrometry device.

In various embodiments, players around the casino may predict cards to be dealt in a game of blackjack.

The invention relates to the detection of DHA and EPA. In a particular aspect, the invention relates to methods for detecting DHA and EPA by mass spectrometry and kits for carrying out such methods.

Methods are provided for synthesizing mixtures of lipids that are representative of the structural diversity of the lipids present in samples of interest. The complex mixtures of lipids produced according to the methods of the present disclosure can be used as internal standards for detecting and quantifying the lipids in samples of interest. Kits including the internal standards and instructions for their use in the detection and quantification of lipids in samples of interest are also provided.

The invention relates to the detection of DHA and EPA. In a particular aspect, the invention relates to methods for detecting DHA and EPA by mass spectrometry and kits for carrying out such methods.

In various embodiments, players around the casino may predict cards to be dealt in a game of blackjack.

In various embodiments, players around the casino may predict cards to be dealt in a game of blackjack.