diff --git a/src/src/main/java/com/my/graphiteDigesterBg/task/TaskSampleMoveToLiquidPlate.java b/src/src/main/java/com/my/graphiteDigesterBg/task/TaskSampleMoveToLiquidPlate.java
index 40424c3..3ad1e41 100644
--- a/src/src/main/java/com/my/graphiteDigesterBg/task/TaskSampleMoveToLiquidPlate.java
+++ b/src/src/main/java/com/my/graphiteDigesterBg/task/TaskSampleMoveToLiquidPlate.java
@@ -1,19 +1,31 @@
 package com.my.graphiteDigesterBg.task;
-import com.my.graphiteDigesterBg.MyDevice;
 import com.my.graphiteDigesterBg.diframe.DiTaskBase;
 import com.my.graphiteDigesterBg.diframe.Task;
 import com.my.graphiteDigesterBg.model.MdbOperationLog;
 import com.my.graphiteDigesterBg.move.MoveMoveTubeRackFromHeatPlateToLiquidPlate;
+import com.my.graphiteDigesterBg.resource.ResHeatingTubeRackSlotManager;
 @Task(name="SampleMoveToLiquidPlate")
 public class TaskSampleMoveToLiquidPlate extends DiTaskBase {
     // slot index
     public Integer slotIndex;
 
     @Override
-    public void run() {
+    protected void execute() {
         this.setStatus(TaskStatus.RUNNING);
         MdbOperationLog.log(this.getUser(), "试管架%d : 样本移至加液区", this.slotIndex);
 
+        var slotMan = this.getResourceManager(ResHeatingTubeRackSlotManager.class);
+        var slot = slotMan.getSlotByIndex(this.slotIndex);
+        if ( !slot.getIsLocked() ) {
+            throw new RuntimeException("试管架位为空，无法取出样本");
+        }
+        if ( slot.isHeating ) {
+            throw new RuntimeException("试管架正在加热中，无法取出样本");
+        }
+        if ( slot.rackPosition.equals("LiquidPlate") ) {
+            throw new RuntimeException("试管架未复位到加热盘，无法取出样本");
+        }
+
         var move = new MoveMoveTubeRackFromHeatPlateToLiquidPlate();
         move.setDevice(this.getDevice());
         move.slotIndex = this.slotIndex;