The Agilent 1260 Infi nity Hybrid SFC/UHPLC System offers a fast, reliable, green, robust, and cost-effective solution by coupling the advantages of HPLC and the benefi ts of supercritical fl uid chromatography (SFC). This Application Note describes the conversion of the United States Pharmacopeia (USP) normal-phase HPLC method for cholecalciferol assay to an SFC method using serially coupled c...

BACKGROUND/AIM This study examined whether the polymorphisms at the promoter region of RET gene are associated with the risk of lung cancer in the Korean population. PATIENTS AND METHODS A total of 409 Korean lung cancer patients and 409 normal subjects were recruited. PCR-RFLP, SNaP Shot assay and logistic regression analyses were performed to characterize the association between polymorphis...

The B → D(∗)K−K(∗)0 decays have been observed for the first time. The branching fractions of theB → D(∗)K−K(∗)0 decay modes are measured. Significant signals are found for the B → D(∗)K−K∗0 and B → D0K−K0 S decay modes. The invariant mass and polarization distributions for the K−K∗0 and K−K0 S subsystems have been studied. For the K−K∗0 sybsystem these distributions agree well with those expect...