Effect of Perioperative Dexmedetomidine Anesthesia on Prognosis of Elderly Patients with Gastrointestinal Tumor Surgery

Table 1

D-lac concentrations of the standards.

Concentrations (μmol/mL)	Measured OD	Absolute OD
0	0.119	0
15	0.404	0.285
30	0.671	0.552
60	1.105	0.986
120	1.677	1.558
240	2.334	2.215