OBJECTIVE: To study the quantitative determination method of ferulic acid in the Wumeitougu oral liquid,compare the stability of ferulic acid in different solvents. METHODS:The detecting conditions of RP -- HPLC were as followKromasil C_(18) column(4.6mm?200mm, 5?m); mobile phase: methanol-- water(30:70); flow rate: 1ml/ min: detecting waslength: 324nm. RESULTS: The calibration curve revealed linearity in the range of 0.05～1.0?g(r=0.9 999). The mean re?ery was 97.01%～101.53%. RSD

Graphene ( GN) and multiwalled carbon nanotubes ( MWCNT) composites were coated on glassy carbon electrode ( GCE ) and then poly ( nicotinic acid ) ( PNA ) was electrodeposited on the modified electrode. The electrochemical behavior of pyridoxine hydrochloride ( VB6 ) was investigated at the modified electrode by cyclic voltammetry ( CV ) and differential pulse voltammetry ( DPV ) . Results showed the oxidation current of VB6 at the GN-MWCNT/PNA/GCE was obviously larger than that at GCE, PNA/GCE and GN/MWCNT/GCE. The oxidation process of VB6 was an irreversible diffusion-controlled process involving one electron and two protons. The liner range between the peak current intensity of DPV and the concentration of VB6 was 0 . 05-200 μmol/L with a detection limit of 0 . 02 μmol/L ( S/N=3 ) . The modified electrode showed a good reproducibility with a relative standard deviation of 3 . 1% ( n=8 ) . The proposed method was applied to the analysis of vitamin B6 in vitamin B6 tablets and compound vitamin B tablets with recoveries between 96 . 1%-104 . 5%.

Gallstone ileus is a rare mechanical ileus,which was caused by discharge of giant gall bladder stone to the intestine.Understanding the causes of ileus is the key factor for treatment,and surgical treatment is the treatment of choice.An old patient with gallstone ileus was admitted to the Second Affiliated Hospital of Soochow University in April 2013.Preoperative X ray detection and computed tomography showed gallbladder wall thickening,formation of a sinus tract between the gall bladder and the duodenum,and intestinal ileus in the left iliac region (the diameter of the stone was about 4 cm).The patient received medical treatment for 3 days and then exploratory laparotomy + lithotomy.Gall bladder stones were not detected during the operation,so the gall bladder was preserved.The patient was followed up till December 2013,the sinus tract was disappeared under B sonography,and the cholecystitis was cured.

Adolescent ; Bone Marrow Neoplasms ; secondary ; Humans ; Male ; Prostatic Neoplasms ; pathology ; Sarcoma ; pathology