TY  - JOUR 
T1  - Development and validation of an analytical method by HPLC-DAD for determination of caffeine in products based on guarana extracts (<i>Paullinia cupana)</i>
JO  - Brazilian Journal of Pharmaceutical Sciences
A1  - Moura-Silva, Anna Kelly
A1  - Mano-Sousa, Brayan Jonas
A1  - Santos, Lays Pedrosa
A1  - Costa, Rafael Serrão da
A1  - Andrade, Frank Pereira de
A1  - Duarte-Almeida, Joaquim Maurício
A1  - Gonçalves, Daniel Bonoto
SN  - 1984-8250
UL  - 10.1590/s2175-97902023e22106
VL  - 59 
Y1  - 2023
PB  - Brasil 
ER  -