diff --git a/src/main/java/com/iflytop/handacid/common/model/entity/Channel.java b/src/main/java/com/iflytop/handacid/common/model/entity/Channel.java
index eb2522b..7bd2249 100644
--- a/src/main/java/com/iflytop/handacid/common/model/entity/Channel.java
+++ b/src/main/java/com/iflytop/handacid/common/model/entity/Channel.java
@@ -25,6 +25,9 @@ public class Channel extends BaseEntity {
     @Schema(description = "溶液浓度")
     private Integer concentration;
 
+    @Schema(description = "添加溶液量")
+    private Double targetVolume;
+
     @Schema(description = "当前溶液量")
     private Double currentVolume;
 
diff --git a/src/main/resources/sql/init.sql b/src/main/resources/sql/init.sql
index 15734a6..7abc626 100644
--- a/src/main/resources/sql/init.sql
+++ b/src/main/resources/sql/init.sql
@@ -31,6 +31,7 @@ CREATE TABLE IF NOT EXISTS channel (
     code                    TEXT,--通道code
     solution_id             INTEGER,--绑定的溶液id
     concentration           INTEGER,--溶液浓度
+    target_volume           REAL,--添加溶液量
     current_volume          REAL,--当前溶液量
     received_volume         REAL,--领取溶液量
     create_time             TEXT DEFAULT CURRENT_TIMESTAMP,