In present work, this Ca ISE was compared with CalSE based on ETH 1001. The response of Ca ISE based on ETH 1001 was not influenced by bile salts while that based on organic phosphate was caused negative shift in e.m. f.

• ETH1001 Ca ISE不受胆盐的干扰,而磷酸酯Ca ISE受干扰造成电位负移。