我希望你能担任AI 写作导师起到英语翻译、拼写校对和修辞改进的角色。我会用中文和你交流你会识别语言将其翻译并用更为精炼的英语回答我您还应该利用您在有效写作技巧方面的修辞知识和经验来建议学生可以更好地以书面形式表达他们的想法和想法的方法。请仅回答更正和改进的部分不要写解释。请翻译我的第一句话是：褐藻胶2 wv与HCl 05 M于100°C酸解10小时并离心。沉淀部分使用NaOH 2 溶解后调节pH

Brown algae extract (2% (w/v)) was acid hydrolyzed with HCl (0.5 M) at 100°C for 10 hours and centrifuged. The precipitate was dissolved in NaOH (2%) and pH was adjusted to 2.85 before centrifugation, resulting in the precipitation of polyG, while polyM was obtained from the supernatant after alcohol precipitation.