diff --git a/unilabos/messages/__init__.py b/unilabos/messages/__init__.py
index 4ef5ac9..b04ba0e 100644
--- a/unilabos/messages/__init__.py
+++ b/unilabos/messages/__init__.py
@@ -628,6 +628,31 @@ class HydrogenateProtocol(BaseModel):
     time: str = Field(..., description="反应时间（如 '2 h'）")
     vessel: dict = Field(..., description="反应容器")
 
+class AdjustPHProtocol(BaseModel):
+    vessel: str = Field(..., description="目标容器")
+    ph_value: float = Field(..., description="目标pH值")  # 改为 ph_value
+    reagent: str = Field(..., description="酸碱试剂名称")
+    # 移除其他可选参数，使用默认值
+
+class ResetHandlingProtocol(BaseModel):
+    solvent: str = Field(..., description="溶剂名称")
+
+class DryProtocol(BaseModel):
+    compound: str = Field(..., description="化合物名称")
+    vessel: str = Field(..., description="目标容器")
+
+class RecrystallizeProtocol(BaseModel):
+    ratio: str = Field(..., description="溶剂比例（如 '1:1', '3:7'）")
+    solvent1: str = Field(..., description="第一种溶剂名称")
+    solvent2: str = Field(..., description="第二种溶剂名称")
+    vessel: str = Field(..., description="目标容器")
+    volume: float = Field(..., description="总体积 (mL)")
+
+class HydrogenateProtocol(BaseModel):
+    temp: str = Field(..., description="反应温度（如 '45 °C'）")
+    time: str = Field(..., description="反应时间（如 '2 h'）")
+    vessel: str = Field(..., description="反应容器")
+
 __all__ = [
     "Point3D", "PumpTransferProtocol", "CleanProtocol", "SeparateProtocol", 
     "EvaporateProtocol", "EvacuateAndRefillProtocol", "AGVTransferProtocol",