To make chitosan having PH sensitivity, in this paper chitosan was grafted by sulfadimethoxypyrimidine (SDM) which is a pH sensitivity group.

为了制备具有pH敏感性能的壳聚糖，本文采用将磺胺二甲氧基嘧啶（SDM）作为pH敏感基团接枝到壳聚糖上。

youdao

Its glyphosate resistance, growth optimal ph and antibiotic sensitivity were detected.

该菌株的较高草甘膦抗性和。

youdao

It has the advantages of definite phase selection, simple structure, high sensitivity, good reliability, wide suitability range and short operation time. Therefore, it will be an ideal ph...

该选相元件具有选相明确、结构简单、灵敏度高、可靠性好、适用范围广、动作速度快等优点，因此，它将是一种较为理想的选相元件。

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Today's processed, preserved foods lack the tough fibers of the plants and grains our ancestors feasted on, throwing off the delicate balance of bacteria in our guts and setting us up for allergic sensitivity, says University of Michigan professor of internal medicine Gary Huffnagle, Ph.

CNN: Why your allergies are bugging you